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79312145338 = 2174749632131
BaseRepresentation
bin100100111011101011…
…1110100101110111010
321120201101210102210101
41021313113310232322
52244412402122323
6100234022310014
75505300053266
oct1116727645672
9246641712711
1079312145338
11306aa702758
121345558830a
13762c78891a
143ba56830a6
1520e2de9dad
hex12775f4bba

79312145338 has 16 divisors (see below), whose sum is σ = 128646486144. Its totient is φ = 36529247680.

The previous prime is 79312145309. The next prime is 79312145347. The reversal of 79312145338 is 83354121397.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 24814468 + ... + 24817663.

It is an arithmetic number, because the mean of its divisors is an integer number (8040405384).

Almost surely, 279312145338 is an apocalyptic number.

79312145338 is a deficient number, since it is larger than the sum of its proper divisors (49334340806).

79312145338 is a wasteful number, since it uses less digits than its factorization.

79312145338 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 49632197.

The product of its digits is 544320, while the sum is 46.

The spelling of 79312145338 in words is "seventy-nine billion, three hundred twelve million, one hundred forty-five thousand, three hundred thirty-eight".

Divisors: 1 2 17 34 47 94 799 1598 49632131 99264262 843746227 1687492454 2332710157 4665420314 39656072669 79312145338