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57168772000 = 255322376389
BaseRepresentation
bin110101001111100001…
…100011101110100000
312110120012010112001221
4311033201203232200
51414040201201000
642132445104424
74062460354444
oct651741435640
9173505115057
1057168772000
112227731060a
12b0b5858114
135511018052
142aa4860824
151748dea61a
hexd4f863ba0

57168772000 has 96 divisors (see below), whose sum is σ = 140548458960. Its totient is φ = 22853708800.

The previous prime is 57168771977. The next prime is 57168772027. The reversal of 57168772000 is 27786175.

57168772000 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 8 ways, for example, as 45859984 + 57122912016 = 6772^2 + 239004^2 .

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 8944806 + ... + 8951194.

Almost surely, 257168772000 is an apocalyptic number.

57168772000 is a gapful number since it is divisible by the number (50) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 57168772000, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (70274229480).

57168772000 is an abundant number, since it is smaller than the sum of its proper divisors (83379686960).

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

57168772000 is a wasteful number, since it uses less digits than its factorization.

57168772000 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8651 (or 8633 counting only the distinct ones).

The product of its (nonzero) digits is 164640, while the sum is 43.

The spelling of 57168772000 in words is "fifty-seven billion, one hundred sixty-eight million, seven hundred seventy-two thousand".

Divisors: 1 2 4 5 8 10 16 20 25 32 40 50 80 100 125 160 200 250 400 500 800 1000 2000 2237 4000 4474 6389 8948 11185 12778 17896 22370 25556 31945 35792 44740 51112 55925 63890 71584 89480 102224 111850 127780 159725 178960 204448 223700 255560 279625 319450 357920 447400 511120 559250 638900 798625 894800 1022240 1118500 1277800 1597250 1789600 2237000 2555600 3194500 4474000 5111200 6389000 8948000 12778000 14292193 25556000 28584386 57168772 71460965 114337544 142921930 228675088 285843860 357304825 457350176 571687720 714609650 1143375440 1429219300 1786524125 2286750880 2858438600 3573048250 5716877200 7146096500 11433754400 14292193000 28584386000 57168772000