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12692471959 = 53853280751
BaseRepresentation
bin10111101001000011…
…11100000010010111
31012202120010101022001
423310201330002113
5201443233100314
65455243420131
7626350142266
oct136441740227
935676111261
1012692471959
11542362a052
122562824647
13127376954b
148859965dd
154e4457674
hex2f487c097

12692471959 has 8 divisors (see below), whose sum is σ = 12947159232. Its totient is φ = 12438348000.

The previous prime is 12692471951. The next prime is 12692472029. The reversal of 12692471959 is 95917429621.

It is a happy number.

12692471959 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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 12692471959 - 23 = 12692471951 is a prime.

It is a super-2 number, since 2×126924719592 (a number of 21 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12692471951) by changing a digit.

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, 95167 + ... + 185584.

It is an arithmetic number, because the mean of its divisors is an integer number (1618394904).

Almost surely, 212692471959 is an apocalyptic number.

12692471959 is a deficient number, since it is larger than the sum of its proper divisors (254687273).

12692471959 is an equidigital number, since it uses as much as digits as its factorization.

12692471959 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 281657.

The product of its digits is 2449440, while the sum is 55.

The spelling of 12692471959 in words is "twelve billion, six hundred ninety-two million, four hundred seventy-one thousand, nine hundred fifty-nine".

Divisors: 1 53 853 45209 280751 14879803 239480603 12692471959