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12513556151 = 25609488639
BaseRepresentation
bin10111010011101110…
…11011011010110111
31012022002110111221122
423221313123122313
5201111432244101
65425412534155
7622045320665
oct135167333267
935262414848
1012513556151
115341637a48
12251292135b
131245684cc5
14869d01c35
154d38b551b
hex2e9ddb6b7

12513556151 has 4 divisors (see below), whose sum is σ = 12514070400. Its totient is φ = 12513041904.

The previous prime is 12513556127. The next prime is 12513556189. The reversal of 12513556151 is 15165531521.

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 12513556151 - 26 = 12513556087 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12513556051) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 218711 + ... + 269928.

It is an arithmetic number, because the mean of its divisors is an integer number (3128517600).

Almost surely, 212513556151 is an apocalyptic number.

12513556151 is a deficient number, since it is larger than the sum of its proper divisors (514249).

12513556151 is an equidigital number, since it uses as much as digits as its factorization.

12513556151 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 514248.

The product of its digits is 22500, while the sum is 35.

The spelling of 12513556151 in words is "twelve billion, five hundred thirteen million, five hundred fifty-six thousand, one hundred fifty-one".

Divisors: 1 25609 488639 12513556151