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56420630 = 257806009
BaseRepresentation
bin1101011100111…
…0100100010110
310221011110112222
43113032210112
5103420430010
65333142342
71253365430
oct327164426
9127143488
1056420630
1129936722
1216a8a9b2
13b8c59b6
1476c9650
154e47355
hex35ce916

56420630 has 16 divisors (see below), whose sum is σ = 116065440. Its totient is φ = 19344192.

The previous prime is 56420627. The next prime is 56420677. The reversal of 56420630 is 3602465.

It is a self number, because there is not a number n which added to its sum of digits gives 56420630.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 402935 + ... + 403074.

It is an arithmetic number, because the mean of its divisors is an integer number (7254090).

Almost surely, 256420630 is an apocalyptic number.

56420630 is an abundant number, since it is smaller than the sum of its proper divisors (59644810).

56420630 is a wasteful number, since it uses less digits than its factorization.

56420630 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 806023.

The product of its (nonzero) digits is 4320, while the sum is 26.

The square root of 56420630 is about 7511.3667198453. The cubic root of 56420630 is about 383.5417484596.

The spelling of 56420630 in words is "fifty-six million, four hundred twenty thousand, six hundred thirty".

Divisors: 1 2 5 7 10 14 35 70 806009 1612018 4030045 5642063 8060090 11284126 28210315 56420630