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51967902164 = 2271182985571
BaseRepresentation
bin110000011001100001…
…110100000111010100
311222010201202221220012
4300121201310013110
51322412240332124
635512420255352
73516545610563
oct603141640724
9158121687805
1051967902164
1120048587082
12a0a3b41558
134b92689289
14272dc31bda
151542516e0e
hexc198741d4

51967902164 has 12 divisors (see below), whose sum is σ = 92224728288. Its totient is φ = 25617979800.

The previous prime is 51967902143. The next prime is 51967902167. The reversal of 51967902164 is 46120976915.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (51967902167) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 91492502 + ... + 91493069.

It is an arithmetic number, because the mean of its divisors is an integer number (7685394024).

Almost surely, 251967902164 is an apocalyptic number.

It is an amenable number.

51967902164 is a deficient number, since it is larger than the sum of its proper divisors (40256826124).

51967902164 is a wasteful number, since it uses less digits than its factorization.

51967902164 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 182985646 (or 182985644 counting only the distinct ones).

The product of its (nonzero) digits is 816480, while the sum is 50.

The spelling of 51967902164 in words is "fifty-one billion, nine hundred sixty-seven million, nine hundred two thousand, one hundred sixty-four".

Divisors: 1 2 4 71 142 284 182985571 365971142 731942284 12991975541 25983951082 51967902164