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12122880458 = 2135937091109
BaseRepresentation
bin10110100101001010…
…00111100111001010
31011021212100010122112
423102211013213022
5144311424133313
65322535222322
7606262532543
oct132245074712
934255303575
1012122880458
115161060577
122423b179a2
1311b2759860
148300874ca
154ae4448a8
hex2d29479ca

12122880458 has 32 divisors (see below), whose sum is σ = 19661518800. Its totient is φ = 5572832256.

The previous prime is 12122880449. The next prime is 12122880461. The reversal of 12122880458 is 85408822121.

12122880458 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 8 ways, for example, as 155176849 + 11967703609 = 12457^2 + 109397^2 .

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 15 ways as a sum of consecutive naturals, for example, 10930808 + ... + 10931916.

Almost surely, 212122880458 is an apocalyptic number.

12122880458 is a deficient number, since it is larger than the sum of its proper divisors (7538638342).

12122880458 is a wasteful number, since it uses less digits than its factorization.

12122880458 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2426.

The product of its (nonzero) digits is 81920, while the sum is 41.

The spelling of 12122880458 in words is "twelve billion, one hundred twenty-two million, eight hundred eighty thousand, four hundred fifty-eight".

Divisors: 1 2 13 26 593 709 1109 1186 1418 2218 7709 9217 14417 15418 18434 28834 420437 657637 786281 840874 1315274 1572562 5465681 8549281 10221653 10931362 17098562 20443306 466264633 932529266 6061440229 12122880458