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745

Number 745: Properties, Factors, and Mathematical Facts

Short answer

The number 745 is an odd composite number with 4 positive divisors. Its prime factorization is 5 × 149. It is also a deficient number, which gives it several notable mathematical relationships.

Is 745 prime?

ClassificationCompositeParityOddDivisor count4AbundanceDeficient

What is the prime factorization of 745?

Prime factorization

745 =
5 times 149
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What are the divisors of 745?

Divisor count

4

Divisor sum

900

Proper divisor sum

155
  • 1
  • 5
  • 149
  • 745
Learn more →Learn more →

How is 745 classified?

Prime

CompositeLearn more →

Perfect square

No

Perfect cube

No

Fibonacci

No

Triangular

No

Power of two

No
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How is 745 represented in other numeral systems?

Decimal

745

Binary

1011101001
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Octal

1351

Hexadecimal

2E9
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Roman

DCCXLVLearn more →

In words

seven hundred forty five

Roots and powers

Square root

27.294688 Approximate

Cube root

9.065368 Approximate

Nearest lower square

729

Nearest higher square

784

Nearest lower cube

729

Nearest higher cube

1000

What are the digit properties of 745?

Digit count

3

Digit sum

16Learn more →

Digit product

140

Digital root

7

Reversed number

547

Which numbers are related to 745?

744· Previous746· Next743· Previous prime751· Next prime5· Prime factor149· Prime factor729· Lower square784· Higher square741· Previous triangular780· Next triangular1490· Double547· Reverse

Why these results are true

  • 745 is composite because it has positive divisors other than 1 and itself.

Compare this number

FAQ for 745

Is 745 prime?
No
What is the prime factorization of 745?
5 × 149
Is 745 a perfect square?
No
What is 745 in binary?
1011101001
What is 745 in Roman numerals?
DCCXLV

Read calculation methodology