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56012372 = 22131077161
BaseRepresentation
bin1101010110101…
…0111001010100
310220101201112022
43111222321110
5103314343442
65320312312
71250045243
oct325527124
9126351468
1056012372
1129687a19
1216912698
13b7b1c20
14762095a
154db63d2
hex356ae54

56012372 has 12 divisors (see below), whose sum is σ = 105561876. Its totient is φ = 25851840.

The previous prime is 56012371. The next prime is 56012423. The reversal of 56012372 is 27321065.

It can be written as a sum of positive squares in 2 ways, for example, as 8042896 + 47969476 = 2836^2 + 6926^2 .

It is a Harshad number since it is a multiple of its sum of digits (26).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (56012371) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 538529 + ... + 538632.

It is an arithmetic number, because the mean of its divisors is an integer number (8796823).

Almost surely, 256012372 is an apocalyptic number.

56012372 is a gapful number since it is divisible by the number (52) formed by its first and last digit.

It is an amenable number.

56012372 is a deficient number, since it is larger than the sum of its proper divisors (49549504).

56012372 is a wasteful number, since it uses less digits than its factorization.

56012372 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1077178 (or 1077176 counting only the distinct ones).

The product of its (nonzero) digits is 2520, while the sum is 26.

The square root of 56012372 is about 7484.1413669171. The cubic root of 56012372 is about 382.6144092234.

The spelling of 56012372 in words is "fifty-six million, twelve thousand, three hundred seventy-two".

Divisors: 1 2 4 13 26 52 1077161 2154322 4308644 14003093 28006186 56012372