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56713140 = 223251128643
BaseRepresentation
bin1101100001010…
…1111110110100
310221201022210200
43120111332310
5104004310030
65343320500
71256024301
oct330257664
9127638720
1056713140
112a016470
1216bb0130
13b998b93
1477640a8
154ea3d60
hex3615fb4

56713140 has 72 divisors (see below), whose sum is σ = 187675488. Its totient is φ = 13748160.

The previous prime is 56713133. The next prime is 56713141. The reversal of 56713140 is 4131765.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (56713141) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 12342 + ... + 16301.

It is an arithmetic number, because the mean of its divisors is an integer number (2606604).

Almost surely, 256713140 is an apocalyptic number.

It is an amenable number.

56713140 is an abundant number, since it is smaller than the sum of its proper divisors (130962348).

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

56713140 is a wasteful number, since it uses less digits than its factorization.

56713140 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 28669 (or 28664 counting only the distinct ones).

The product of its (nonzero) digits is 2520, while the sum is 27.

The square root of 56713140 is about 7530.8127051468. The cubic root of 56713140 is about 384.2034241180.

The spelling of 56713140 in words is "fifty-six million, seven hundred thirteen thousand, one hundred forty".

Divisors: 1 2 3 4 5 6 9 10 11 12 15 18 20 22 30 33 36 44 45 55 60 66 90 99 110 132 165 180 198 220 330 396 495 660 990 1980 28643 57286 85929 114572 143215 171858 257787 286430 315073 343716 429645 515574 572860 630146 859290 945219 1031148 1260292 1288935 1575365 1718580 1890438 2577870 2835657 3150730 3780876 4726095 5155740 5671314 6301460 9452190 11342628 14178285 18904380 28356570 56713140