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12542663873 = 44333598429
BaseRepresentation
bin10111010111001100…
…11101110011000001
31012101010020100020102
423223212131303001
5201141410220443
65432332452145
7622550612105
oct135346356301
935333210212
1012542663873
115357009013
12252061a055
13124b706acc
1486db1b905
154d6214cb8
hex2eb99dcc1

12542663873 has 8 divisors (see below), whose sum is σ = 12576211200. Its totient is φ = 12509141008.

The previous prime is 12542663797. The next prime is 12542663897. The reversal of 12542663873 is 37836624521.

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 12542663873 - 232 = 8247696577 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (12542660873) 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, 1483823 + ... + 1492251.

It is an arithmetic number, because the mean of its divisors is an integer number (1572026400).

Almost surely, 212542663873 is an apocalyptic number.

It is an amenable number.

12542663873 is a deficient number, since it is larger than the sum of its proper divisors (33547327).

12542663873 is an equidigital number, since it uses as much as digits as its factorization.

12542663873 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12231.

The product of its digits is 1451520, while the sum is 47.

The spelling of 12542663873 in words is "twelve billion, five hundred forty-two million, six hundred sixty-three thousand, eight hundred seventy-three".

Divisors: 1 443 3359 8429 1488037 3734047 28313011 12542663873