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12905994095 = 52581198819
BaseRepresentation
bin11000000010100000…
…11101011101101111
31020022102220102121022
430001100131131233
5202412413302340
65532352124355
7634552065641
oct140120353557
936272812538
1012905994095
115523108425
1226022366bb
1312a8a795c7
148a6098891
155080833b5
hex30141d76f

12905994095 has 4 divisors (see below), whose sum is σ = 15487192920. Its totient is φ = 10324795272.

The previous prime is 12905994083. The next prime is 12905994151. The reversal of 12905994095 is 59049950921.

12905994095 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 12905994095 - 228 = 12637558639 is a prime.

It is a congruent number.

It is an unprimeable number.

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 3 ways as a sum of consecutive naturals, for example, 1290599405 + ... + 1290599414.

It is an arithmetic number, because the mean of its divisors is an integer number (3871798230).

Almost surely, 212905994095 is an apocalyptic number.

12905994095 is a deficient number, since it is larger than the sum of its proper divisors (2581198825).

12905994095 is an equidigital number, since it uses as much as digits as its factorization.

12905994095 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2581198824.

The product of its (nonzero) digits is 1312200, while the sum is 53.

The spelling of 12905994095 in words is "twelve billion, nine hundred five million, nine hundred ninety-four thousand, ninety-five".

Divisors: 1 5 2581198819 12905994095