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70688768944 = 2471109570881
BaseRepresentation
bin100000111010101100…
…0010000001110110000
320202110102101112020111
41001311120100032300
52124232311101234
652250213351104
75051506423243
oct1016530201660
9222412345214
1070688768944
1127a84a70402
1211849638494
136887053a41
1435c82a925a
151c8ad15664
hex10756103b0

70688768944 has 40 divisors (see below), whose sum is σ = 140162948640. Its totient is φ = 34526822400.

The previous prime is 70688768923. The next prime is 70688768981. The reversal of 70688768944 is 44986788607.

It is a self number, because there is not a number n which added to its sum of digits gives 70688768944.

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, 161617 + ... + 409264.

It is an arithmetic number, because the mean of its divisors is an integer number (3504073716).

Almost surely, 270688768944 is an apocalyptic number.

It is an amenable number.

70688768944 is a deficient number, since it is larger than the sum of its proper divisors (69474179696).

70688768944 is a wasteful number, since it uses less digits than its factorization.

70688768944 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 571069 (or 571063 counting only the distinct ones).

The product of its (nonzero) digits is 130056192, while the sum is 67.

The spelling of 70688768944 in words is "seventy billion, six hundred eighty-eight million, seven hundred sixty-eight thousand, nine hundred forty-four".

Divisors: 1 2 4 8 16 71 109 142 218 284 436 568 872 1136 1744 7739 15478 30956 61912 123824 570881 1141762 2283524 4567048 9134096 40532551 62226029 81065102 124452058 162130204 248904116 324260408 497808232 648520816 995616464 4418048059 8836096118 17672192236 35344384472 70688768944