15864

15864 is a positive integer. It is an even, composite number with a straightforward prime factorization.

Its prime factorization is 2^3 × 3 × 661, where 661 is a prime. This shows the number is divisible by 8 and by 3, and consequently by 24. Since 24 × 661 = 15864, the quotient when divided by 24 is 661. The factorization also indicates that 15864 is not prime, and it is not a perfect square or cube.

In decimal form the number is 15864. Its representations in other bases include binary 11110111111000, hexadecimal 0x3DF8, and octal 36770. These representations reflect the same value across different numeral systems and aid in certain computational tasks.

As a base-10 property, 15864 is a Harshad (or Niven) number because it is divisible by the sum of its digits: 1 + 5 + 8 + 6 + 4 = 24, and 15864 ÷ 24 = 661. Beyond these arithmetic characteristics, 15864 does not correspond to any widely noted mathematical constants or famous sequences.