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57074643 = 3219732191
BaseRepresentation
bin1101100110111…
…0001111010011
310222101200200200
43121232033103
5104102342033
65355150243
71262061243
oct331561723
9128350620
1057074643
112a24302a
1217145383
13ba945a2
147819b23
155026013
hex366e3d3

57074643 has 12 divisors (see below), whose sum is σ = 82862208. Its totient is φ = 37855440.

The previous prime is 57074629. The next prime is 57074713. The reversal of 57074643 is 34647075.

57074643 is a `hidden beast` number, since 5 + 7 + 0 + 7 + 4 + 643 = 666.

It is not a de Polignac number, because 57074643 - 221 = 54977491 is a prime.

It is a hoax number, since the sum of its digits (36) coincides with the sum of the digits of its distinct prime factors.

It is a junction number, because it is equal to n+sod(n) for n = 57074598 and 57074607.

It is not an unprimeable number, because it can be changed into a prime (57074623) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 14323 + ... + 17868.

It is an arithmetic number, because the mean of its divisors is an integer number (6905184).

Almost surely, 257074643 is an apocalyptic number.

57074643 is a deficient number, since it is larger than the sum of its proper divisors (25787565).

57074643 is a wasteful number, since it uses less digits than its factorization.

57074643 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 32394 (or 32391 counting only the distinct ones).

The product of its (nonzero) digits is 70560, while the sum is 36.

The square root of 57074643 is about 7554.7761714031. The cubic root of 57074643 is about 385.0180303019.

The spelling of 57074643 in words is "fifty-seven million, seventy-four thousand, six hundred forty-three".

Divisors: 1 3 9 197 591 1773 32191 96573 289719 6341627 19024881 57074643