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15114608639 = 131162662203
BaseRepresentation
bin11100001001110011…
…01001111111111111
31110000100210200011222
432010321221333333
5221423314434024
610535450303555
71043361024254
oct160471517777
943010720158
1015114608639
1164568911a9
122b19a27bbb
13156b506010
14a3553942b
155d6e0285e
hex384e69fff

15114608639 has 4 divisors (see below), whose sum is σ = 16277270856. Its totient is φ = 13951946424.

The previous prime is 15114608611. The next prime is 15114608681. The reversal of 15114608639 is 93680641151.

It is a semiprime because it is the product of two primes.

It is not a de Polignac number, because 15114608639 - 228 = 14846173183 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 15114608639.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (15114602639) 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 3 ways as a sum of consecutive naturals, for example, 581331089 + ... + 581331114.

It is an arithmetic number, because the mean of its divisors is an integer number (4069317714).

Almost surely, 215114608639 is an apocalyptic number.

15114608639 is a deficient number, since it is larger than the sum of its proper divisors (1162662217).

15114608639 is a wasteful number, since it uses less digits than its factorization.

15114608639 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1162662216.

The product of its (nonzero) digits is 155520, while the sum is 44.

The spelling of 15114608639 in words is "fifteen billion, one hundred fourteen million, six hundred eight thousand, six hundred thirty-nine".

Divisors: 1 13 1162662203 15114608639