MathQuarryCalculators

Factors / Factors of 408

Factors of 408

1, 2, 3, 4, 6, 8, 12, 17, 24, 34, 51, 68, 102, 136, 204, 408

408 breaks into 8 pairs, tested up to √408 ≈ 20.2; each pair multiplies back to 408 exactly. 408's full pair list is (1, 408), (2, 204), (3, 136), (4, 102), (6, 68), (8, 51), (12, 34), (17, 24), for 16 divisors in total. 408's divisors other than 408 itself sum to 672, 264 above 408: abundant. 408 is even, digit sum 12 for 408; small divisors of 408 include 2, 3, 4, 6, 8. 408 has 16 divisors; 407 has 4 and 409 has 2, so 408 wins here. 408 divided by its largest divisor, 204, gives 2.

Factors
1, 2, 3, 4, 6, 8, 12, 17, 24, 34, 51, 68, 102, 136, 204, 408
Number of factors
16
Prime?
No
Prime factorization
2^3 x 3 x 17
Even or odd
Even
Square
166464
Cube
67917312
Binary
110011000
Hexadecimal
198
Roman numeral
CDVIII
Perfect square?
No
Perfect cube?
No
Perfect number?
No
Triangular number?
No
Fibonacci number?
No
Full facts for 408 →Is 408 prime? →