Search a number
-
+
51924578943 = 3149977118897
BaseRepresentation
bin110000010110111100…
…100011001001111111
311222000201020220121110
4300112330203021333
51322320143011233
635504231533103
73515511432036
oct602674431177
9158021226543
1051924578943
1120026086766
12a09152a193
134b866cac33
14272819571d
15153d80a663
hexc16f2327f

51924578943 has 16 divisors (see below), whose sum is σ = 69769346400. Its totient is φ = 34348578816.

The previous prime is 51924578939. The next prime is 51924578969. The reversal of 51924578943 is 34987542915.

It is not a de Polignac number, because 51924578943 - 22 = 51924578939 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (51924578243) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 377271 + ... + 496167.

It is an arithmetic number, because the mean of its divisors is an integer number (4360584150).

Almost surely, 251924578943 is an apocalyptic number.

51924578943 is a deficient number, since it is larger than the sum of its proper divisors (17844767457).

51924578943 is a wasteful number, since it uses less digits than its factorization.

51924578943 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 120026.

The product of its digits is 10886400, while the sum is 57.

The spelling of 51924578943 in words is "fifty-one billion, nine hundred twenty-four million, five hundred seventy-eight thousand, nine hundred forty-three".

Divisors: 1 3 149 447 977 2931 118897 145573 356691 436719 17715653 53146959 116162369 348487107 17308192981 51924578943