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51868380674 = 2112357653667
BaseRepresentation
bin110000010011100110…
…001010111000000010
311221212210111202002002
4300103212022320002
51322211301140144
635454503224002
73514226650505
oct602346127002
9157783452062
1051868380674
111aaa7392110
12a076748002
134b77b82516
14272092713c
15153890914e
hexc1398ae02

51868380674 has 8 divisors (see below), whose sum is σ = 84875532048. Its totient is φ = 23576536660.

The previous prime is 51868380661. The next prime is 51868380677. The reversal of 51868380674 is 47608386815.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not an unprimeable number, because it can be changed into a prime (51868380677) 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, 1178826812 + ... + 1178826855.

It is an arithmetic number, because the mean of its divisors is an integer number (10609441506).

Almost surely, 251868380674 is an apocalyptic number.

51868380674 is a deficient number, since it is larger than the sum of its proper divisors (33007151374).

51868380674 is a wasteful number, since it uses less digits than its factorization.

51868380674 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2357653680.

The product of its (nonzero) digits is 7741440, while the sum is 56.

The spelling of 51868380674 in words is "fifty-one billion, eight hundred sixty-eight million, three hundred eighty thousand, six hundred seventy-four".

Divisors: 1 2 11 22 2357653667 4715307334 25934190337 51868380674