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56930440 = 2357203323
BaseRepresentation
bin1101100100101…
…1000010001000
310222010100212211
43121023002020
5104033233230
65352114504
71260620650
oct331130210
9128110784
1056930440
112a154756
1217095a34
13ba43a68
1477bd360
154ee842a
hex364b088

56930440 has 32 divisors (see below), whose sum is σ = 146393280. Its totient is φ = 19518912.

The previous prime is 56930429. The next prime is 56930443. The reversal of 56930440 is 4403965.

It is a Smith number, since the sum of its digits (31) coincides with the sum of the digits of its prime factors.

It is not an unprimeable number, because it can be changed into a prime (56930443) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 101382 + ... + 101941.

It is an arithmetic number, because the mean of its divisors is an integer number (4574790).

Almost surely, 256930440 is an apocalyptic number.

It is an amenable number.

56930440 is an abundant number, since it is smaller than the sum of its proper divisors (89462840).

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

56930440 is a wasteful number, since it uses less digits than its factorization.

56930440 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 203341 (or 203337 counting only the distinct ones).

The product of its (nonzero) digits is 12960, while the sum is 31.

The square root of 56930440 is about 7545.2263054199. The cubic root of 56930440 is about 384.6934986778.

The spelling of 56930440 in words is "fifty-six million, nine hundred thirty thousand, four hundred forty".

Divisors: 1 2 4 5 7 8 10 14 20 28 35 40 56 70 140 280 203323 406646 813292 1016615 1423261 1626584 2033230 2846522 4066460 5693044 7116305 8132920 11386088 14232610 28465220 56930440