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70038991560 = 233517294632557
BaseRepresentation
bin100000100111010100…
…1100011001011001000
320200210010201102020110
41001032221203023020
52121414440212220
652101522354320
75026426414446
oct1011651431310
9220703642213
1070038991560
1127781203aaa
12116a7abb9a0
1367b254a195
143565c85b96
151c4dc63be0
hex104ea632c8

70038991560 has 256 divisors, whose sum is σ = 230735692800. Its totient is φ = 16928980992.

The previous prime is 70038991511. The next prime is 70038991597. The reversal of 70038991560 is 6519983007.

It is an unprimeable number.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 27389802 + ... + 27392358.

It is an arithmetic number, because the mean of its divisors is an integer number (901311300).

Almost surely, 270038991560 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 70038991560, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (115367846400).

70038991560 is an abundant number, since it is smaller than the sum of its proper divisors (160696701240).

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

70038991560 is a wasteful number, since it uses less digits than its factorization.

70038991560 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3080 (or 3076 counting only the distinct ones).

The product of its (nonzero) digits is 408240, while the sum is 48.

The spelling of 70038991560 in words is "seventy billion, thirty-eight million, nine hundred ninety-one thousand, five hundred sixty".