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57317997468 = 2234776499789
BaseRepresentation
bin110101011000011010…
…110011101110011100
312110221120220221221010
4311120122303232130
51414341401404333
642155335335220
74066251640224
oct653032635634
9173846827833
1057317997468
1122343573946
12b137821510
135535c05544
142aba5c7084
151757075563
hexd586b3b9c

57317997468 has 12 divisors (see below), whose sum is σ = 133741994120. Its totient is φ = 19105999152.

The previous prime is 57317997413. The next prime is 57317997493. The reversal of 57317997468 is 86479971375.

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

It is a super-2 number, since 2×573179974682 (a number of 22 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 57317997399 and 57317997408.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2388249883 + ... + 2388249906.

Almost surely, 257317997468 is an apocalyptic number.

It is an amenable number.

57317997468 is an abundant number, since it is smaller than the sum of its proper divisors (76423996652).

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

57317997468 is a wasteful number, since it uses less digits than its factorization.

57317997468 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4776499796 (or 4776499794 counting only the distinct ones).

The product of its digits is 80015040, while the sum is 66.

The spelling of 57317997468 in words is "fifty-seven billion, three hundred seventeen million, nine hundred ninety-seven thousand, four hundred sixty-eight".

Divisors: 1 2 3 4 6 12 4776499789 9552999578 14329499367 19105999156 28658998734 57317997468