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6968118391 = 13991540877
BaseRepresentation
bin1100111110101010…
…10000110001110111
3122222121202002102221
412133111100301313
5103232314242031
63111234543211
7334451012653
oct63725206167
918877662387
106968118391
112a56359533
121425737b07
138708226a0
144a161ba63
152abb1ca11
hex19f550c77

6968118391 has 8 divisors (see below), whose sum is σ = 7511713664. Its totient is φ = 6425606880.

The previous prime is 6968118383. The next prime is 6968118397. The reversal of 6968118391 is 1938118696.

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 6968118391 - 23 = 6968118383 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (6968118397) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 257556 + ... + 283321.

It is an arithmetic number, because the mean of its divisors is an integer number (938964208).

Almost surely, 26968118391 is an apocalyptic number.

6968118391 is a deficient number, since it is larger than the sum of its proper divisors (543595273).

6968118391 is a wasteful number, since it uses less digits than its factorization.

6968118391 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 541881.

The product of its digits is 559872, while the sum is 52.

The square root of 6968118391 is about 83475.2561601341. The cubic root of 6968118391 is about 1910.0226042846.

The spelling of 6968118391 in words is "six billion, nine hundred sixty-eight million, one hundred eighteen thousand, three hundred ninety-one".

Divisors: 1 13 991 12883 540877 7031401 536009107 6968118391