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12906516443 = 107617195497
BaseRepresentation
bin11000000010100100…
…11100111111011011
31020022110212222010112
430001102130333123
5202413032011233
65532411234535
7634556402552
oct140122347733
936273788115
1012906516443
115523434917
122602448a4b
1312a8c002a2
148a6192d99
15508138048
hex30149cfdb

12906516443 has 8 divisors (see below), whose sum is σ = 13048318512. Its totient is φ = 12765106816.

The previous prime is 12906516431. The next prime is 12906516509. The reversal of 12906516443 is 34461560921.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 12906516443 - 28 = 12906516187 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 12906516443.

It is not an unprimeable number, because it can be changed into a prime (12906516743) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 31730 + ... + 163767.

It is an arithmetic number, because the mean of its divisors is an integer number (1631039814).

Almost surely, 212906516443 is an apocalyptic number.

12906516443 is a deficient number, since it is larger than the sum of its proper divisors (141802069).

12906516443 is a wasteful number, since it uses less digits than its factorization.

12906516443 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 196221.

The product of its (nonzero) digits is 155520, while the sum is 41.

The spelling of 12906516443 in words is "twelve billion, nine hundred six million, five hundred sixteen thousand, four hundred forty-three".

Divisors: 1 107 617 66019 195497 20918179 120621649 12906516443