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51152010031 = 91615583671
BaseRepresentation
bin101111101000111001…
…011011101100101111
311220000212112100022001
4233220321123230233
51314224403310111
635255433033131
73460410624403
oct575071335457
9156025470261
1051152010031
111a769a81261
129ab68557a7
134a92630975
14269372b103
1514e5aa11c1
hexbe8e5bb2f

51152010031 has 4 divisors (see below), whose sum is σ = 51157602864. Its totient is φ = 51146417200.

The previous prime is 51152009941. The next prime is 51152010043. The reversal of 51152010031 is 13001025115.

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

It is a cyclic number.

It is not a de Polignac number, because 51152010031 - 217 = 51151878959 is a prime.

It is a super-2 number, since 2×511520100312 (a number of 22 digits) contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 51152009990 and 51152010008.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (51152019031) 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, 2782675 + ... + 2800996.

It is an arithmetic number, because the mean of its divisors is an integer number (12789400716).

Almost surely, 251152010031 is an apocalyptic number.

51152010031 is a deficient number, since it is larger than the sum of its proper divisors (5592833).

51152010031 is an equidigital number, since it uses as much as digits as its factorization.

51152010031 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5592832.

The product of its (nonzero) digits is 150, while the sum is 19.

Adding to 51152010031 its reverse (13001025115), we get a palindrome (64153035146).

The spelling of 51152010031 in words is "fifty-one billion, one hundred fifty-two million, ten thousand, thirty-one".

Divisors: 1 9161 5583671 51152010031