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13232312938 = 213701726013
BaseRepresentation
bin11000101001011010…
…10001001001101010
31021011011221010220101
430110231101021222
5204044433003223
610025010220014
7645623542555
oct142455211152
937134833811
1013232312938
115680328619
12269358460a
13132b560990
148d755d69c
15526a404ad
hex314b5126a

13232312938 has 16 divisors (see below), whose sum is σ = 21405796776. Its totient is φ = 6098500800.

The previous prime is 13232312917. The next prime is 13232312939. The reversal of 13232312938 is 83921323231.

It can be written as a sum of positive squares in 4 ways, for example, as 6725148049 + 6507164889 = 82007^2 + 80667^2 .

It is a junction number, because it is equal to n+sod(n) for n = 13232312897 and 13232312906.

It is not an unprimeable number, because it can be changed into a prime (13232312939) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 344781 + ... + 381232.

Almost surely, 213232312938 is an apocalyptic number.

13232312938 is a deficient number, since it is larger than the sum of its proper divisors (8173483838).

13232312938 is a wasteful number, since it uses less digits than its factorization.

13232312938 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 726729.

The product of its digits is 46656, while the sum is 37.

The spelling of 13232312938 in words is "thirteen billion, two hundred thirty-two million, three hundred twelve thousand, nine hundred thirty-eight".

Divisors: 1 2 13 26 701 1402 9113 18226 726013 1452026 9438169 18876338 508935113 1017870226 6616156469 13232312938