690
Number 690: Properties, Factors, and Mathematical Facts
Short answer
The number 690 is an even composite number with 16 positive divisors. Its prime factorization is 2 × 3 × 5 × 23. It is also an abundant number, which gives it several notable mathematical relationships.
Is 690 prime?
ClassificationCompositeParityEvenDivisor count16AbundanceAbundant
What is the prime factorization of 690?
Prime factorization
2 times 3 times 5 times 23
What are the divisors of 690?
Divisor count
16
Divisor sum
1,728
Proper divisor sum
1,038
- 1
- 2
- 3
- 5
- 6
- 10
- 15
- 23
- 30
- 46
- 69
- 115
- 138
- 230
- 345
- 690
How is 690 classified?
How is 690 represented in other numeral systems?
Decimal
690
Binary
1010110010
Octal
1262
Hexadecimal
2B2
Roman
DCXCLearn more →
In words
six hundred ninety
Roots and powers
Square root
26.267851 Approximate
Cube root
8.836556 Approximate
Nearest lower square
676
Nearest higher square
729
Nearest lower cube
512
Nearest higher cube
729
What are the digit properties of 690?
Which numbers are related to 690?
Why these results are true
- 690 is composite because it has positive divisors other than 1 and itself.
- 690 is abundant because the sum of its proper divisors (1038) is greater than 690.
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FAQ for 690
- Is 690 prime?
- No
- What is the prime factorization of 690?
- 2 × 3 × 5 × 23
- Is 690 a perfect square?
- No
- What is 690 in binary?
- 1010110010
- What is 690 in Roman numerals?
- DCXC