Search a number
-
+
15142131513 = 321682459057
BaseRepresentation
bin11100001101000101…
…01001011100111001
31110002021120222110200
432012202221130321
5222002341202023
610542312232413
71044143665005
oct160642513471
943067528420
1015142131513
11647037a583
122b2709b709
131574121642
14a39061705
155d953c743
hex3868a9739

15142131513 has 6 divisors (see below), whose sum is σ = 21871967754. Its totient is φ = 10094754336.

The previous prime is 15142131481. The next prime is 15142131527. The reversal of 15142131513 is 31513124151.

15142131513 is a `hidden beast` number, since 1 + 5 + 14 + 2 + 131 + 513 = 666.

15142131513 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in only one way, i.e., 13996782864 + 1145348649 = 118308^2 + 33843^2 .

It is not a de Polignac number, because 15142131513 - 25 = 15142131481 is a prime.

It is not an unprimeable number, because it can be changed into a prime (15142131533) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 841229520 + ... + 841229537.

It is an arithmetic number, because the mean of its divisors is an integer number (3645327959).

Almost surely, 215142131513 is an apocalyptic number.

It is an amenable number.

15142131513 is a deficient number, since it is larger than the sum of its proper divisors (6729836241).

15142131513 is a wasteful number, since it uses less digits than its factorization.

15142131513 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1682459063 (or 1682459060 counting only the distinct ones).

The product of its digits is 1800, while the sum is 27.

Adding to 15142131513 its reverse (31513124151), we get a palindrome (46655255664).

The spelling of 15142131513 in words is "fifteen billion, one hundred forty-two million, one hundred thirty-one thousand, five hundred thirteen".

Divisors: 1 3 9 1682459057 5047377171 15142131513