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56102140 = 2252805107
BaseRepresentation
bin1101011000000…
…0110011111100
310220120021200001
43112000303330
5103330232030
65322244044
71250601043
oct326006374
9126507601
1056102140
1129739406
1216956624
13b813a43
14764555a
154dd2cca
hex3580cfc

56102140 has 12 divisors (see below), whose sum is σ = 117814536. Its totient is φ = 22440848.

The previous prime is 56102119. The next prime is 56102171. The reversal of 56102140 is 4120165.

56102140 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a super-2 number, since 2×561021402 = 6294900225159200, which contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1402534 + ... + 1402573.

It is an arithmetic number, because the mean of its divisors is an integer number (9817878).

Almost surely, 256102140 is an apocalyptic number.

It is an amenable number.

56102140 is an abundant number, since it is smaller than the sum of its proper divisors (61712396).

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

56102140 is a wasteful number, since it uses less digits than its factorization.

56102140 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2805116 (or 2805114 counting only the distinct ones).

The product of its (nonzero) digits is 240, while the sum is 19.

The square root of 56102140 is about 7490.1361803374. The cubic root of 56102140 is about 382.8186986029.

It can be divided in two parts, 5610 and 2140, that added together give a triangular number (7750 = T124).

The spelling of 56102140 in words is "fifty-six million, one hundred two thousand, one hundred forty".

Divisors: 1 2 4 5 10 20 2805107 5610214 11220428 14025535 28051070 56102140