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12440691302 = 213236806779
BaseRepresentation
bin10111001011000010…
…11110001001100110
31012010000100121011112
423211201132021212
5200434304110202
65414251105022
7620202063014
oct134541361146
935100317145
1012440691302
11530449a566
1224b2442172
131233552500
148603758b4
154cc2c0b52
hex2e585e266

12440691302 has 12 divisors (see below), whose sum is σ = 20206922220. Its totient is φ = 5741857368.

The previous prime is 12440691293. The next prime is 12440691323. The reversal of 12440691302 is 20319604421.

12440691302 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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 5 ways as a sum of consecutive naturals, for example, 18403052 + ... + 18403727.

It is an arithmetic number, because the mean of its divisors is an integer number (1683910185).

Almost surely, 212440691302 is an apocalyptic number.

12440691302 is a deficient number, since it is larger than the sum of its proper divisors (7766230918).

12440691302 is a wasteful number, since it uses less digits than its factorization.

12440691302 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 36806807 (or 36806794 counting only the distinct ones).

The product of its (nonzero) digits is 10368, while the sum is 32.

The spelling of 12440691302 in words is "twelve billion, four hundred forty million, six hundred ninety-one thousand, three hundred two".

Divisors: 1 2 13 26 169 338 36806779 73613558 478488127 956976254 6220345651 12440691302