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13157333120 = 27573281621
BaseRepresentation
bin11000100000011110…
…01111100010000000
31020221221211202221002
430100033033202000
5203421234124440
610013331151132
7644023325531
oct142017174200
936857752832
1013157333120
115641a76128
1226724454a8
131318b6a619
148cb602688
1552017e115
hex3103cf880

13157333120 has 64 divisors (see below), whose sum is σ = 31885242840. Its totient is φ = 5190819840.

The previous prime is 13157333071. The next prime is 13157333179. The reversal of 13157333120 is 2133375131.

It can be written as a sum of positive squares in 4 ways, for example, as 8170713664 + 4986619456 = 90392^2 + 70616^2 .

It is a tau number, because it is divible by the number of its divisors (64).

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 94091 + ... + 187530.

Almost surely, 213157333120 is an apocalyptic number.

13157333120 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

13157333120 is an abundant number, since it is smaller than the sum of its proper divisors (18727909720).

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

13157333120 is an equidigital number, since it uses as much as digits as its factorization.

13157333120 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 281713 (or 281701 counting only the distinct ones).

The product of its (nonzero) digits is 5670, while the sum is 29.

The spelling of 13157333120 in words is "thirteen billion, one hundred fifty-seven million, three hundred thirty-three thousand, one hundred twenty".

Divisors: 1 2 4 5 8 10 16 20 32 40 64 73 80 128 146 160 292 320 365 584 640 730 1168 1460 2336 2920 4672 5840 9344 11680 23360 46720 281621 563242 1126484 1408105 2252968 2816210 4505936 5632420 9011872 11264840 18023744 20558333 22529680 36047488 41116666 45059360 82233332 90118720 102791665 164466664 180237440 205583330 328933328 411166660 657866656 822333320 1315733312 1644666640 2631466624 3289333280 6578666560 13157333120