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57305457276 = 22341521115013
BaseRepresentation
bin110101010111101010…
…111110001001111100
312110220201022212000120
4311113222332021330
51414330144113101
642154210454540
74066040231004
oct652752761174
9173821285016
1057305457276
1122337489251
12b133594450
135533434702
142ab8a81004
151755de9b36
hexd57abe27c

57305457276 has 24 divisors (see below), whose sum is σ = 133717116624. Its totient is φ = 19101192960.

The previous prime is 57305457227. The next prime is 57305457323. The reversal of 57305457276 is 67275450375.

It is a super-2 number, since 2×573054572762 (a number of 22 digits) contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 440746 + ... + 555758.

It is an arithmetic number, because the mean of its divisors is an integer number (5571546526).

Almost surely, 257305457276 is an apocalyptic number.

It is an amenable number.

57305457276 is an abundant number, since it is smaller than the sum of its proper divisors (76411659348).

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

57305457276 is a wasteful number, since it uses less digits than its factorization.

57305457276 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 156541 (or 156539 counting only the distinct ones).

The product of its (nonzero) digits is 6174000, while the sum is 51.

The spelling of 57305457276 in words is "fifty-seven billion, three hundred five million, four hundred fifty-seven thousand, two hundred seventy-six".

Divisors: 1 2 3 4 6 12 41521 83042 115013 124563 166084 230026 249126 345039 460052 498252 690078 1380156 4775454773 9550909546 14326364319 19101819092 28652728638 57305457276