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70868938940 = 22517919795793
BaseRepresentation
bin100001000000000011…
…1100011000010111100
320202220222102010000022
41002000013203002330
52130114422021230
652320131151312
75056125020222
oct1020007430274
9222828363008
1070868938940
1128067739828
1211899a45538
1368b54870c7
1436041a8b12
151c9ba541e5
hex10801e30bc

70868938940 has 24 divisors (see below), whose sum is σ = 149656202640. Its totient is φ = 28189207808.

The previous prime is 70868938927. The next prime is 70868938967. The reversal of 70868938940 is 4983986807.

It is a happy number.

It is a congruent number.

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, 9894317 + ... + 9901476.

It is an arithmetic number, because the mean of its divisors is an integer number (6235675110).

Almost surely, 270868938940 is an apocalyptic number.

It is an amenable number.

70868938940 is an abundant number, since it is smaller than the sum of its proper divisors (78787263700).

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

70868938940 is a wasteful number, since it uses less digits than its factorization.

70868938940 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 19795981 (or 19795979 counting only the distinct ones).

The product of its (nonzero) digits is 20901888, while the sum is 62.

The spelling of 70868938940 in words is "seventy billion, eight hundred sixty-eight million, nine hundred thirty-eight thousand, nine hundred forty".

Divisors: 1 2 4 5 10 20 179 358 716 895 1790 3580 19795793 39591586 79183172 98978965 197957930 395915860 3543446947 7086893894 14173787788 17717234735 35434469470 70868938940