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15055488013 = 117701127913
BaseRepresentation
bin11100000010110000…
…01000010000001101
31102212020120000221011
432001120020100031
5221313201104023
610525535205221
71042042352026
oct160130102015
942766500834
1015055488013
116426480a85
122b02076811
13155c1a63b7
14a2b749c4d
155d1b2550d
hex38160840d

15055488013 has 4 divisors (see below), whose sum is σ = 15055733628. Its totient is φ = 15055242400.

The previous prime is 15055487999. The next prime is 15055488029. The reversal of 15055488013 is 31088455051.

It is a happy number.

It is a semiprime because it is the product of two primes, and also a brilliant number, because the two primes have the same length.

It can be written as a sum of positive squares in 2 ways, for example, as 10277498884 + 4777989129 = 101378^2 + 69123^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2k-15055488013 is a prime.

It is a Smith number, since the sum of its digits (40) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (15055488053) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 53745 + ... + 181657.

It is an arithmetic number, because the mean of its divisors is an integer number (3763933407).

Almost surely, 215055488013 is an apocalyptic number.

It is an amenable number.

15055488013 is a deficient number, since it is larger than the sum of its proper divisors (245615).

15055488013 is a wasteful number, since it uses less digits than its factorization.

15055488013 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 245614.

The product of its (nonzero) digits is 96000, while the sum is 40.

The spelling of 15055488013 in words is "fifteen billion, fifty-five million, four hundred eighty-eight thousand, thirteen".

Divisors: 1 117701 127913 15055488013