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56723296 = 257253229
BaseRepresentation
bin1101100001100…
…0011101100000
310221201211201211
43120120131200
5104010121141
65343435504
71256066020
oct330303540
9127654654
1056723296
112a023063
1216bb5b94
13b9a06a6
147767a80
154ea6d81
hex3618760

56723296 has 24 divisors (see below), whose sum is σ = 127627920. Its totient is φ = 24309888.

The previous prime is 56723291. The next prime is 56723299. The reversal of 56723296 is 69232765.

It is a Smith number, since the sum of its digits (40) coincides with the sum of the digits of its prime factors.

It is an alternating number because its digits alternate between odd and even.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (56723291) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 126391 + ... + 126838.

It is an arithmetic number, because the mean of its divisors is an integer number (5317830).

Almost surely, 256723296 is an apocalyptic number.

56723296 is a gapful number since it is divisible by the number (56) formed by its first and last digit.

It is an amenable number.

56723296 is an abundant number, since it is smaller than the sum of its proper divisors (70904624).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

56723296 is a wasteful number, since it uses less digits than its factorization.

56723296 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 253246 (or 253238 counting only the distinct ones).

The product of its digits is 136080, while the sum is 40.

The square root of 56723296 is about 7531.4869713756. The cubic root of 56723296 is about 384.2263567052.

The spelling of 56723296 in words is "fifty-six million, seven hundred twenty-three thousand, two hundred ninety-six".

Divisors: 1 2 4 7 8 14 16 28 32 56 112 224 253229 506458 1012916 1772603 2025832 3545206 4051664 7090412 8103328 14180824 28361648 56723296