Search a number
-
+
51741822931 = 1783311117911
BaseRepresentation
bin110000001100000011…
…011000111111010011
311221112222100221111021
4300030003120333103
51321431401313211
635434142500311
73511132144501
oct601403307723
9157488327437
1051741822931
111aa41a01437
12a040294697
134b578a0796
14270bbc1671
15152c75a771
hexc0c0d8fd3

51741822931 has 16 divisors (see below), whose sum is σ = 55624278528. Its totient is φ = 47956355200.

The previous prime is 51741822919. The next prime is 51741822943. The reversal of 51741822931 is 13922814715.

It is an interprime number because it is at equal distance from previous prime (51741822919) and next prime (51741822943).

It is a cyclic number.

It is not a de Polignac number, because 51741822931 - 211 = 51741820883 is a prime.

It is a super-2 number, since 2×517418229312 (a number of 22 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (51741822961) 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 15 ways as a sum of consecutive naturals, for example, 379866 + ... + 497776.

It is an arithmetic number, because the mean of its divisors is an integer number (3476517408).

Almost surely, 251741822931 is an apocalyptic number.

51741822931 is a deficient number, since it is larger than the sum of its proper divisors (3882455597).

51741822931 is a wasteful number, since it uses less digits than its factorization.

51741822931 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 118322.

The product of its digits is 120960, while the sum is 43.

The spelling of 51741822931 in words is "fifty-one billion, seven hundred forty-one million, eight hundred twenty-two thousand, nine hundred thirty-one".

Divisors: 1 17 83 311 1411 5287 25813 117911 438821 2004487 9786613 36670321 166372421 623395457 3043636643 51741822931