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57403790868 = 2234783649239
BaseRepresentation
bin110101011101100010…
…000101011000010100
312111011120100201100110
4311131202011120110
51420030332301433
642212042243020
74101343112604
oct653542053024
9174146321313
1057403790868
1122387a41786
12b1604b6470
13554a913878
142ac7b5ac04
15175e870963
hexd5d885614

57403790868 has 12 divisors (see below), whose sum is σ = 133942178720. Its totient is φ = 19134596952.

The previous prime is 57403790867. The next prime is 57403790959. The reversal of 57403790868 is 86809730475.

It is a tau number, because it is divible by the number of its divisors (12).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (57403790867) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2391824608 + ... + 2391824631.

Almost surely, 257403790868 is an apocalyptic number.

It is an amenable number.

57403790868 is an abundant number, since it is smaller than the sum of its proper divisors (76538387852).

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

57403790868 is a wasteful number, since it uses less digits than its factorization.

57403790868 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4783649246 (or 4783649244 counting only the distinct ones).

The product of its (nonzero) digits is 10160640, while the sum is 57.

The spelling of 57403790868 in words is "fifty-seven billion, four hundred three million, seven hundred ninety thousand, eight hundred sixty-eight".

Divisors: 1 2 3 4 6 12 4783649239 9567298478 14350947717 19134596956 28701895434 57403790868