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70641796160 = 2651316981201
BaseRepresentation
bin100000111001010010…
…1000100010001000000
320202100011000001200202
41001302211010101000
52124133244434120
652241414504332
75050366234325
oct1016245042100
9222304001622
1070641796160
1127a604a8021
12118359650a8
13687a3b84b0
1435c1d5cb4c
151c86b37875
hex1072944440

70641796160 has 56 divisors (see below), whose sum is σ = 181155462936. Its totient is φ = 26083123200.

The previous prime is 70641796139. The next prime is 70641796163. The reversal of 70641796160 is 6169714607.

It can be written as a sum of positive squares in 4 ways, for example, as 8505266176 + 62136529984 = 92224^2 + 249272^2 .

It is not an unprimeable number, because it can be changed into a prime (70641796163) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 8486441 + ... + 8494760.

It is an arithmetic number, because the mean of its divisors is an integer number (3234918981).

Almost surely, 270641796160 is an apocalyptic number.

It is an amenable number.

70641796160 is an abundant number, since it is smaller than the sum of its proper divisors (110513666776).

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

70641796160 is a wasteful number, since it uses less digits than its factorization.

70641796160 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 16981231 (or 16981221 counting only the distinct ones).

The product of its (nonzero) digits is 381024, while the sum is 47.

The spelling of 70641796160 in words is "seventy billion, six hundred forty-one million, seven hundred ninety-six thousand, one hundred sixty".

Divisors: 1 2 4 5 8 10 13 16 20 26 32 40 52 64 65 80 104 130 160 208 260 320 416 520 832 1040 2080 4160 16981201 33962402 67924804 84906005 135849608 169812010 220755613 271699216 339624020 441511226 543398432 679248040 883022452 1086796864 1103778065 1358496080 1766044904 2207556130 2716992160 3532089808 4415112260 5433984320 7064179616 8830224520 14128359232 17660449040 35320898080 70641796160