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56831476 = 221317531213
BaseRepresentation
bin1101100011001…
…0110111110100
310221221100010111
43120302313310
5104022101401
65350032404
71260026302
oct330626764
9127840114
1056831476
112a097369
1217048704
13ba0a9c0
147795272
154ec8e51
hex3632df4

56831476 has 48 divisors (see below), whose sum is σ = 115640784. Its totient is φ = 24201216.

The previous prime is 56831473. The next prime is 56831483. The reversal of 56831476 is 67413865.

It is a happy number.

It can be written as a sum of positive squares in 8 ways, for example, as 2808976 + 54022500 = 1676^2 + 7350^2 .

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (56831471) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 46246 + ... + 47458.

It is an arithmetic number, because the mean of its divisors is an integer number (2409183).

Almost surely, 256831476 is an apocalyptic number.

It is an amenable number.

56831476 is an abundant number, since it is smaller than the sum of its proper divisors (58809308).

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

56831476 is a wasteful number, since it uses less digits than its factorization.

56831476 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1300 (or 1298 counting only the distinct ones).

The product of its digits is 120960, while the sum is 40.

The square root of 56831476 is about 7538.6653991274. The cubic root of 56831476 is about 384.4704610631.

The spelling of 56831476 in words is "fifty-six million, eight hundred thirty-one thousand, four hundred seventy-six".

Divisors: 1 2 4 13 17 26 34 52 53 68 106 212 221 442 689 884 901 1213 1378 1802 2426 2756 3604 4852 11713 15769 20621 23426 31538 41242 46852 63076 64289 82484 128578 257156 268073 536146 835757 1072292 1092913 1671514 2185826 3343028 4371652 14207869 28415738 56831476