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12514642709 = 137160956773
BaseRepresentation
bin10111010011110111…
…00100101100010101
31012022011111201102112
423221323210230111
5201112222031314
65425452120405
7622060464542
oct135173445425
935264451375
1012514642709
11534220a328
122513166105
13124597573a
1486a105bc9
154d3a2c43e
hex2e9ee4b15

12514642709 has 8 divisors (see below), whose sum is σ = 12614047320. Its totient is φ = 12415355136.

The previous prime is 12514642597. The next prime is 12514642727. The reversal of 12514642709 is 90724641521.

It can be written as a sum of positive squares in 4 ways, for example, as 4332535684 + 8182107025 = 65822^2 + 90455^2 .

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2k-12514642709 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 (12514642409) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 192047 + ... + 248819.

It is an arithmetic number, because the mean of its divisors is an integer number (1576755915).

Almost surely, 212514642709 is an apocalyptic number.

It is an amenable number.

12514642709 is a deficient number, since it is larger than the sum of its proper divisors (99404611).

12514642709 is a wasteful number, since it uses less digits than its factorization.

12514642709 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 58519.

The product of its (nonzero) digits is 120960, while the sum is 41.

The spelling of 12514642709 in words is "twelve billion, five hundred fourteen million, six hundred forty-two thousand, seven hundred nine".

Divisors: 1 137 1609 56773 220433 7777901 91347757 12514642709