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57007172120 = 2351975009437
BaseRepresentation
bin110101000101111001…
…000110101000011000
312110010221001101201012
4311011321012220120
51413222314001440
642104433313052
74055455652663
oct650571065030
9173127041635
1057007172120
11221a4076198
12b06b705788
1354b66b7312
142a8b1d66da
151739b28e65
hexd45e46a18

57007172120 has 32 divisors (see below), whose sum is σ = 135016988400. Its totient is φ = 21602717568.

The previous prime is 57007172087. The next prime is 57007172141. The reversal of 57007172120 is 2127170075.

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, 37503959 + ... + 37505478.

Almost surely, 257007172120 is an apocalyptic number.

It is an amenable number.

57007172120 is an abundant number, since it is smaller than the sum of its proper divisors (78009816280).

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

57007172120 is a wasteful number, since it uses less digits than its factorization.

57007172120 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 75009467 (or 75009463 counting only the distinct ones).

The product of its (nonzero) digits is 6860, while the sum is 32.

The spelling of 57007172120 in words is "fifty-seven billion, seven million, one hundred seventy-two thousand, one hundred twenty".

Divisors: 1 2 4 5 8 10 19 20 38 40 76 95 152 190 380 760 75009437 150018874 300037748 375047185 600075496 750094370 1425179303 1500188740 2850358606 3000377480 5700717212 7125896515 11401434424 14251793030 28503586060 57007172120