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12660051254 = 283128359443
BaseRepresentation
bin10111100101001100…
…10000110100110110
31012200022010020110012
423302212100310312
5201411433120004
65452124500222
7625504442264
oct136246206466
935608106405
1012660051254
1154072a5984
1225539aa672
131269b277b6
14881557434
154e16a146e
hex2f2990d36

12660051254 has 16 divisors (see below), whose sum is σ = 19234176192. Its totient is φ = 6248780808.

The previous prime is 12660051169. The next prime is 12660051269. The reversal of 12660051254 is 45215006621.

12660051254 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a self number, because there is not a number n which added to its sum of digits gives 12660051254.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 183257 + ... + 242699.

It is an arithmetic number, because the mean of its divisors is an integer number (1202136012).

Almost surely, 212660051254 is an apocalyptic number.

12660051254 is a deficient number, since it is larger than the sum of its proper divisors (6574124938).

12660051254 is a wasteful number, since it uses less digits than its factorization.

12660051254 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 60811.

The product of its (nonzero) digits is 14400, while the sum is 32.

Adding to 12660051254 its reverse (45215006621), we get a palindrome (57875057875).

The spelling of 12660051254 in words is "twelve billion, six hundred sixty million, fifty-one thousand, two hundred fifty-four".

Divisors: 1 2 83 166 1283 2566 59443 106489 118886 212978 4933769 9867538 76265369 152530738 6330025627 12660051254