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12816372239 = 117322969697
BaseRepresentation
bin10111110111110101…
…00101001000001111
31020002012021011112022
423323322211020033
5202221442402424
65515431200355
7632413236506
oct137372451017
936065234468
1012816372239
115487565180
1225982160bb
13129332a818
1489820983d
1550027d95e
hex2fbea520f

12816372239 has 16 divisors (see below), whose sum is σ = 14235119520. Its totient is φ = 11441295360.

The previous prime is 12816372227. The next prime is 12816372251. The reversal of 12816372239 is 93227361821.

It is a happy number.

It is an interprime number because it is at equal distance from previous prime (12816372227) and next prime (12816372251).

It is not a de Polignac number, because 12816372239 - 24 = 12816372223 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 12816372239.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12816372269) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 149039 + ... + 218735.

It is an arithmetic number, because the mean of its divisors is an integer number (889694970).

Almost surely, 212816372239 is an apocalyptic number.

12816372239 is a deficient number, since it is larger than the sum of its proper divisors (1418747281).

12816372239 is a wasteful number, since it uses less digits than its factorization.

12816372239 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 70010.

The product of its digits is 217728, while the sum is 44.

The spelling of 12816372239 in words is "twelve billion, eight hundred sixteen million, three hundred seventy-two thousand, two hundred thirty-nine".

Divisors: 1 11 73 229 803 2519 16717 69697 183887 766667 5087881 15960613 55966691 175566743 1165124749 12816372239