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12231153502 = 29763047183
BaseRepresentation
bin10110110010000100…
…01001011101011110
31011120102001222100021
423121002021131132
5200022133403002
65341404022354
7612046042441
oct133102113536
934512058307
1012231153502
115207192727
1224542319ba
1311cc008b49
148405cd658
154b8bd0737
hex2d908975e

12231153502 has 8 divisors (see below), whose sum is σ = 18535872096. Its totient is φ = 6052529472.

The previous prime is 12231153479. The next prime is 12231153511. The reversal of 12231153502 is 20535113221.

12231153502 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 super-2 number, since 2×122311535022 (a number of 21 digits) contains 22 as substring.

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 3 ways as a sum of consecutive naturals, for example, 31523398 + ... + 31523785.

It is an arithmetic number, because the mean of its divisors is an integer number (2316984012).

Almost surely, 212231153502 is an apocalyptic number.

12231153502 is a deficient number, since it is larger than the sum of its proper divisors (6304718594).

12231153502 is an equidigital number, since it uses as much as digits as its factorization.

12231153502 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 63047282.

The product of its (nonzero) digits is 1800, while the sum is 25.

Adding to 12231153502 its reverse (20535113221), we get a palindrome (32766266723).

The spelling of 12231153502 in words is "twelve billion, two hundred thirty-one million, one hundred fifty-three thousand, five hundred two".

Divisors: 1 2 97 194 63047183 126094366 6115576751 12231153502