Search a number
-
+
51130513151254 = 225565256575627
BaseRepresentation
bin10111010000000110000000…
…00100101101010100010110
320201001000210101002201102201
423220003000010231110112
523200210242331320004
6300425011121355114
713525025531564245
oct1350030004552426
9221030711081381
1051130513151254
1115323368782259
125899529498a9a
13226b781ca1424
14c8aa3133695c
155da04e2ee6a4
hex2e80c012d516

51130513151254 has 4 divisors (see below), whose sum is σ = 76695769726884. Its totient is φ = 25565256575626.

The previous prime is 51130513151233. The next prime is 51130513151269. The reversal of 51130513151254 is 45215131503115.

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

It is a super-2 number, since 2×511305131512542 (a number of 28 digits) contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

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 as a sum of consecutive naturals, namely, 12782628287812 + ... + 12782628287815.

It is an arithmetic number, because the mean of its divisors is an integer number (19173942431721).

Almost surely, 251130513151254 is an apocalyptic number.

51130513151254 is a deficient number, since it is larger than the sum of its proper divisors (25565256575630).

51130513151254 is a wasteful number, since it uses less digits than its factorization.

51130513151254 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 25565256575629.

The product of its (nonzero) digits is 45000, while the sum is 37.

Adding to 51130513151254 its reverse (45215131503115), we get a palindrome (96345644654369).

The spelling of 51130513151254 in words is "fifty-one trillion, one hundred thirty billion, five hundred thirteen million, one hundred fifty-one thousand, two hundred fifty-four".

Divisors: 1 2 25565256575627 51130513151254