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57205714920 = 2335476714291
BaseRepresentation
bin110101010001101110…
…011110111111101000
312110122202122102020020
4311101232132333220
51414124130334140
642140245000440
74063416360654
oct652156367750
9173582572206
1057205714920
1122296153352
12b1060b3120
135518881273
142aa9719a64
15174c2966d0
hexd51b9efe8

57205714920 has 32 divisors (see below), whose sum is σ = 171617145120. Its totient is φ = 15254857280.

The previous prime is 57205714903. The next prime is 57205714921. The reversal of 57205714920 is 2941750275.

It is not an unprimeable number, because it can be changed into a prime (57205714921) 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, 238357026 + ... + 238357265.

It is an arithmetic number, because the mean of its divisors is an integer number (5363035785).

Almost surely, 257205714920 is an apocalyptic number.

It is an amenable number.

57205714920 is an abundant number, since it is smaller than the sum of its proper divisors (114411430200).

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

57205714920 is a wasteful number, since it uses less digits than its factorization.

57205714920 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 476714305 (or 476714301 counting only the distinct ones).

The product of its (nonzero) digits is 176400, while the sum is 42.

The spelling of 57205714920 in words is "fifty-seven billion, two hundred five million, seven hundred fourteen thousand, nine hundred twenty".

Divisors: 1 2 3 4 5 6 8 10 12 15 20 24 30 40 60 120 476714291 953428582 1430142873 1906857164 2383571455 2860285746 3813714328 4767142910 5720571492 7150714365 9534285820 11441142984 14301428730 19068571640 28602857460 57205714920