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12118868079 = 347239359621
BaseRepresentation
bin10110100100101011…
…10100000001101111
31011021120210021200220
423102111310001233
5144304412234304
65322313222423
7606213451623
oct132225640157
934246707626
1012118868079
11515986aa5a
122422701a13
1311b1983476
1482d721183
154ade00ad9
hex2d257406f

12118868079 has 16 divisors (see below), whose sum is σ = 16571381760. Its totient is φ = 7874239520.

The previous prime is 12118868071. The next prime is 12118868101. The reversal of 12118868079 is 97086881121.

It is a happy number.

12118868079 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a cyclic number.

It is not a de Polignac number, because 12118868079 - 23 = 12118868071 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12118868071) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 146112 + ... + 213509.

It is an arithmetic number, because the mean of its divisors is an integer number (1035711360).

Almost surely, 212118868079 is an apocalyptic number.

12118868079 is a deficient number, since it is larger than the sum of its proper divisors (4452513681).

12118868079 is a wasteful number, since it uses less digits than its factorization.

12118868079 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 359910.

The product of its (nonzero) digits is 387072, while the sum is 51.

The spelling of 12118868079 in words is "twelve billion, one hundred eighteen million, eight hundred sixty-eight thousand, seventy-nine".

Divisors: 1 3 47 141 239 717 11233 33699 359621 1078863 16902187 50706561 85949419 257848257 4039622693 12118868079