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12801147297 = 34267049099
BaseRepresentation
bin10111110110000001…
…00000000110100001
31020001010121122211120
423323000200012201
5202204043203142
65514125002453
7632136646101
oct137300400641
936033548746
1012801147297
115479a06484
1225930b3429
131290129993
148961a5201
154edc727ec
hex2fb0201a1

12801147297 has 4 divisors (see below), whose sum is σ = 17068196400. Its totient is φ = 8534098196.

The previous prime is 12801147287. The next prime is 12801147299. The reversal of 12801147297 is 79274110821.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 12801147297 - 219 = 12800623009 is a prime.

It is not an unprimeable number, because it can be changed into a prime (12801147299) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2133524547 + ... + 2133524552.

It is an arithmetic number, because the mean of its divisors is an integer number (4267049100).

Almost surely, 212801147297 is an apocalyptic number.

It is an amenable number.

12801147297 is a deficient number, since it is larger than the sum of its proper divisors (4267049103).

12801147297 is an equidigital number, since it uses as much as digits as its factorization.

12801147297 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4267049102.

The product of its (nonzero) digits is 56448, while the sum is 42.

The spelling of 12801147297 in words is "twelve billion, eight hundred one million, one hundred forty-seven thousand, two hundred ninety-seven".

Divisors: 1 3 4267049099 12801147297