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57032402620 = 2256146747871
BaseRepresentation
bin110101000111011001…
…010110011010111100
312110012200112020110011
4311013121112122330
51413300243340440
642111134153004
74056213265204
oct650731263274
9173180466404
1057032402620
1122207339246
12b078052764
1354bb9ac3cb
142a906c3404
15173be5e9ea
hexd476566bc

57032402620 has 24 divisors (see below), whose sum is σ = 121731458688. Its totient is φ = 22438977600.

The previous prime is 57032402611. The next prime is 57032402629. The reversal of 57032402620 is 2620423075.

It is an interprime number because it is at equal distance from previous prime (57032402611) and next prime (57032402629).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (57032402629) 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, 23372716 + ... + 23375155.

It is an arithmetic number, because the mean of its divisors is an integer number (5072144112).

Almost surely, 257032402620 is an apocalyptic number.

It is an amenable number.

57032402620 is an abundant number, since it is smaller than the sum of its proper divisors (64699056068).

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

57032402620 is a wasteful number, since it uses less digits than its factorization.

57032402620 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 46747941 (or 46747939 counting only the distinct ones).

The product of its (nonzero) digits is 20160, while the sum is 31.

Adding to 57032402620 its reverse (2620423075), we get a palindrome (59652825695).

The spelling of 57032402620 in words is "fifty-seven billion, thirty-two million, four hundred two thousand, six hundred twenty".

Divisors: 1 2 4 5 10 20 61 122 244 305 610 1220 46747871 93495742 186991484 233739355 467478710 934957420 2851620131 5703240262 11406480524 14258100655 28516201310 57032402620