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12119891308 = 2272318819707
BaseRepresentation
bin10110100100110011…
…01101110101101100
31011021122201021022021
423102121231311230
5144310143010213
65322351155524
7606225243040
oct132231556554
934248637267
1012119891308
11515a3a97a8
122422b15ba4
1311b1c51125
1482d90a020
154ae053d8d
hex2d266dd6c

12119891308 has 24 divisors (see below), whose sum is σ = 25293687552. Its totient is φ = 4968402384.

The previous prime is 12119891281. The next prime is 12119891339. The reversal of 12119891308 is 80319891121.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 9409210 + ... + 9410497.

It is an arithmetic number, because the mean of its divisors is an integer number (1053903648).

Almost surely, 212119891308 is an apocalyptic number.

It is an amenable number.

12119891308 is an abundant number, since it is smaller than the sum of its proper divisors (13173796244).

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

12119891308 is a wasteful number, since it uses less digits than its factorization.

12119891308 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 18819741 (or 18819739 counting only the distinct ones).

The product of its (nonzero) digits is 31104, while the sum is 43.

The spelling of 12119891308 in words is "twelve billion, one hundred nineteen million, eight hundred ninety-one thousand, three hundred eight".

Divisors: 1 2 4 7 14 23 28 46 92 161 322 644 18819707 37639414 75278828 131737949 263475898 432853261 526951796 865706522 1731413044 3029972827 6059945654 12119891308