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256192036 = 225321512
BaseRepresentation
bin11110100010100…
…10111000100100
3122212001220101221
433101102320210
51011041121121
641231030124
76230411362
oct1721227044
9585056357
10256192036
11121682961
127196b344
13410ccc29
142604c632
1517758b41
hexf452e24

256192036 has 27 divisors (see below), whose sum is σ = 460001073. Its totient is φ = 124846800.

The previous prime is 256192031. The next prime is 256192043. The reversal of 256192036 is 630291652.

The square root of 256192036 is 16006.

It is a perfect power (a square), and thus also a powerful number.

It can be written as a sum of positive squares in only one way, i.e., 184688100 + 71503936 = 13590^2 + 8456^2 .

It is a Smith number, since the sum of its digits (34) coincides with the sum of the digits of its prime factors.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 256191992 and 256192010.

It is not an unprimeable number, because it can be changed into a prime (256192031) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 8 ways as a sum of consecutive naturals, for example, 1696561 + ... + 1696711.

Almost surely, 2256192036 is an apocalyptic number.

256192036 is the 16006-th square number.

It is an amenable number.

256192036 is a deficient number, since it is larger than the sum of its proper divisors (203809037).

256192036 is an equidigital number, since it uses as much as digits as its factorization.

256192036 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 412 (or 206 counting only the distinct ones).

The product of its (nonzero) digits is 19440, while the sum is 34.

The cubic root of 256192036 is about 635.1191509729.

The spelling of 256192036 in words is "two hundred fifty-six million, one hundred ninety-two thousand, thirty-six".

Divisors: 1 2 4 53 106 151 212 302 604 2809 5618 8003 11236 16006 22801 32012 45602 91204 424159 848318 1208453 1696636 2416906 4833812 64048009 128096018 256192036