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79481666682 = 23211401422559
BaseRepresentation
bin100101000000101111…
…0011111110001111010
321121011012210000100200
41022001132133301322
52300234301313212
6100302515543030
75512426006515
oct1120136376172
9247135700320
1079481666682
1130787368640
12134a22baa76
137658931102
143bbddadd7c
152102c336dc
hex128179fc7a

79481666682 has 24 divisors (see below), whose sum is σ = 187865758080. Its totient is φ = 24085353480.

The previous prime is 79481666639. The next prime is 79481666707. The reversal of 79481666682 is 28666618497.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 200711082 + ... + 200711477.

It is an arithmetic number, because the mean of its divisors is an integer number (7827739920).

Almost surely, 279481666682 is an apocalyptic number.

79481666682 is an abundant number, since it is smaller than the sum of its proper divisors (108384091398).

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

79481666682 is a wasteful number, since it uses less digits than its factorization.

79481666682 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 401422578 (or 401422575 counting only the distinct ones).

The product of its digits is 41803776, while the sum is 63.

The spelling of 79481666682 in words is "seventy-nine billion, four hundred eighty-one million, six hundred sixty-six thousand, six hundred eighty-two".

Divisors: 1 2 3 6 9 11 18 22 33 66 99 198 401422559 802845118 1204267677 2408535354 3612803031 4415648149 7225606062 8831296298 13246944447 26493888894 39740833341 79481666682