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57235980 = 22351950207
BaseRepresentation
bin1101101001010…
…1101000001100
310222200220000010
43122111220030
5104123022410
65402433220
71263332514
oct332255014
9128626003
1057235980
112a34326a
1217202810
13bb1cb59
14785c844
155058c20
hex3695a0c

57235980 has 48 divisors (see below), whose sum is σ = 168698880. Its totient is φ = 14459328.

The previous prime is 57235973. The next prime is 57236021. The reversal of 57235980 is 8953275.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 23964 + ... + 26243.

It is an arithmetic number, because the mean of its divisors is an integer number (3514560).

Almost surely, 257235980 is an apocalyptic number.

It is an amenable number.

57235980 is an abundant number, since it is smaller than the sum of its proper divisors (111462900).

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

57235980 is a wasteful number, since it uses less digits than its factorization.

57235980 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 50238 (or 50236 counting only the distinct ones).

The product of its (nonzero) digits is 75600, while the sum is 39.

The square root of 57235980 is about 7565.4464508051. The cubic root of 57235980 is about 385.3804750563.

The spelling of 57235980 in words is "fifty-seven million, two hundred thirty-five thousand, nine hundred eighty".

Divisors: 1 2 3 4 5 6 10 12 15 19 20 30 38 57 60 76 95 114 190 228 285 380 570 1140 50207 100414 150621 200828 251035 301242 502070 602484 753105 953933 1004140 1506210 1907866 2861799 3012420 3815732 4769665 5723598 9539330 11447196 14308995 19078660 28617990 57235980