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57783238768 = 2473173328547
BaseRepresentation
bin110101110100001001…
…100100000001110000
312112011000100200000101
4311310021210001300
51421320002120033
642313435202144
74113631265653
oct656411440160
9175130320011
1057783238768
112256214a592
12b2475a6354
1355ab40a658
142b222d189a
151782d2497d
hexd74264070

57783238768 has 40 divisors (see below), whose sum is σ = 113558120208. Its totient is φ = 28478403072.

The previous prime is 57783238741. The next prime is 57783238769. The reversal of 57783238768 is 86783238775.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (57783238769) 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, 2009871 + ... + 2038417.

Almost surely, 257783238768 is an apocalyptic number.

It is an amenable number.

57783238768 is a deficient number, since it is larger than the sum of its proper divisors (55774881440).

57783238768 is a wasteful number, since it uses less digits than its factorization.

57783238768 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 30361 (or 30355 counting only the distinct ones).

The product of its digits is 94832640, while the sum is 64.

The spelling of 57783238768 in words is "fifty-seven billion, seven hundred eighty-three million, two hundred thirty-eight thousand, seven hundred sixty-eight".

Divisors: 1 2 4 8 16 73 146 292 584 1168 1733 3466 6932 13864 27728 28547 57094 114188 126509 228376 253018 456752 506036 1012072 2024144 2083931 4167862 8335724 16671448 33342896 49471951 98943902 197887804 395775608 791551216 3611452423 7222904846 14445809692 28891619384 57783238768