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79983641696 = 257596052031
BaseRepresentation
bin100101001111101100…
…1011000010001100000
321122110012022222121212
41022133121120101200
52302301303013241
6100424411005252
75531032510520
oct1123731302140
9248405288555
1079983641696
1130a14753922
1213602439828
13770892814a
143c2a91b680
152131d3bbeb
hex129f658460

79983641696 has 48 divisors (see below), whose sum is σ = 183013447680. Its totient is φ = 33697703040.

The previous prime is 79983641681. The next prime is 79983641741. The reversal of 79983641696 is 69614638997.

It is a happy number.

It is a congruent number.

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, 3012800 + ... + 3039231.

It is an arithmetic number, because the mean of its divisors is an integer number (3812780160).

Almost surely, 279983641696 is an apocalyptic number.

It is an amenable number.

79983641696 is an abundant number, since it is smaller than the sum of its proper divisors (103029805984).

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

79983641696 is a wasteful number, since it uses less digits than its factorization.

79983641696 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6052107 (or 6052099 counting only the distinct ones).

The product of its digits is 105815808, while the sum is 68.

The spelling of 79983641696 in words is "seventy-nine billion, nine hundred eighty-three million, six hundred forty-one thousand, six hundred ninety-six".

Divisors: 1 2 4 7 8 14 16 28 32 56 59 112 118 224 236 413 472 826 944 1652 1888 3304 6608 13216 6052031 12104062 24208124 42364217 48416248 84728434 96832496 169456868 193664992 338913736 357069829 677827472 714139658 1355654944 1428279316 2499488803 2856558632 4998977606 5713117264 9997955212 11426234528 19995910424 39991820848 79983641696