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51682015077 = 37111381162007
BaseRepresentation
bin110000001000011111…
…001111011101100101
311221101210211101112120
4300020133033131211
51321321043440302
635424204540153
73506504610540
oct601037173545
9157353741476
1051682015077
111aa11171960
12a024251659
134b48390114
142703c93857
1515273949bc
hexc087cf765

51682015077 has 32 divisors (see below), whose sum is σ = 85975701504. Its totient is φ = 26828193600.

The previous prime is 51682015001. The next prime is 51682015139. The reversal of 51682015077 is 77051028615.

It is not a de Polignac number, because 51682015077 - 27 = 51682014949 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (51682015277) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 238008 + ... + 400014.

It is an arithmetic number, because the mean of its divisors is an integer number (2686740672).

Almost surely, 251682015077 is an apocalyptic number.

It is an amenable number.

51682015077 is a deficient number, since it is larger than the sum of its proper divisors (34293686427).

51682015077 is a wasteful number, since it uses less digits than its factorization.

51682015077 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 163409.

The product of its (nonzero) digits is 117600, while the sum is 42.

The spelling of 51682015077 in words is "fifty-one billion, six hundred eighty-two million, fifteen thousand, seventy-seven".

Divisors: 1 3 7 11 21 33 77 231 1381 4143 9667 15191 29001 45573 106337 162007 319011 486021 1134049 1782077 3402147 5346231 12474539 37423617 223731667 671195001 1566121669 2461048337 4698365007 7383145011 17227338359 51682015077