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13131515433151 = 175963732054329
BaseRepresentation
bin1011111100010110101101…
…0100000001000010111111
31201111100201212222202101001
42333011223110001002333
53210121320422330101
643532311312431131
72523502123342243
oct277055324010277
951440655882331
1013131515433151
114203054140215
121580b85b484a7
137433b17c6a4b
143357d6890423
1517b8aa592901
hexbf16b5010bf

13131515433151 has 16 divisors (see below), whose sum is σ = 14141843373600. Its totient is φ = 12147685198848.

The previous prime is 13131515433149. The next prime is 13131515433229. The reversal of 13131515433151 is 15133451513131.

It is a happy number.

It is not a de Polignac number, because 13131515433151 - 21 = 13131515433149 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 13131515433151.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (13131515433131) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 5364955 + ... + 7419283.

It is an arithmetic number, because the mean of its divisors is an integer number (883865210850).

Almost surely, 213131515433151 is an apocalyptic number.

13131515433151 is a deficient number, since it is larger than the sum of its proper divisors (1010327940449).

13131515433151 is a wasteful number, since it uses less digits than its factorization.

13131515433151 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2060778.

The product of its digits is 40500, while the sum is 37.

Adding to 13131515433151 its reverse (15133451513131), we get a palindrome (28264966946282).

The spelling of 13131515433151 in words is "thirteen trillion, one hundred thirty-one billion, five hundred fifteen million, four hundred thirty-three thousand, one hundred fifty-one".

Divisors: 1 17 59 1003 6373 108341 376007 2054329 6392119 34923593 121205411 2060491987 13092238717 222568058189 772442084303 13131515433151