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115691931469 = 1319533316447
BaseRepresentation
bin110101110111111000…
…1101100011101001101
3102001121202210001110201
41223233301230131031
53343414113301334
6125051555333501
711233645122562
oct1535761543515
9361552701421
10115691931469
1145079096504
121a508bb1291
13aba98014aa
14585711c869
153021b7ac14
hex1aefc6c74d

115691931469 has 8 divisors (see below), whose sum is σ = 115808394240. Its totient is φ = 115575514896.

The previous prime is 115691931457. The next prime is 115691931493. The reversal of 115691931469 is 964139196511.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 115691931469 - 29 = 115691930957 is a prime.

It is a super-2 number, since 2×1156919314692 (a number of 23 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (115691931449) 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 7 ways as a sum of consecutive naturals, for example, 7026004 + ... + 7042450.

It is an arithmetic number, because the mean of its divisors is an integer number (14476049280).

Almost surely, 2115691931469 is an apocalyptic number.

It is an amenable number.

115691931469 is a deficient number, since it is larger than the sum of its proper divisors (116462771).

115691931469 is a wasteful number, since it uses less digits than its factorization.

115691931469 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 23099.

The product of its digits is 1574640, while the sum is 55.

The spelling of 115691931469 in words is "one hundred fifteen billion, six hundred ninety-one million, nine hundred thirty-one thousand, four hundred sixty-nine".

Divisors: 1 1319 5333 16447 7034227 21693593 87711851 115691931469