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51070682939 = 197983409933
BaseRepresentation
bin101111100100000011…
…001100011100111011
311212211012111111111112
4233210003030130323
51314043043323224
635243405550535
73455402433233
oct574403143473
9155735444445
1051070682939
111a728083a91
129a9357544b
134a7b827523
1426869dacc3
1514dd88930e
hexbe40cc73b

51070682939 has 16 divisors (see below), whose sum is σ = 55095129600. Its totient is φ = 47194651296.

The previous prime is 51070682921. The next prime is 51070682947. The reversal of 51070682939 is 93928607015.

It is a cyclic number.

It is not a de Polignac number, because 51070682939 - 28 = 51070682683 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (51070682959) 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 15 ways as a sum of consecutive naturals, for example, 80384 + ... + 329549.

It is an arithmetic number, because the mean of its divisors is an integer number (3443445600).

Almost surely, 251070682939 is an apocalyptic number.

51070682939 is a deficient number, since it is larger than the sum of its proper divisors (4024446661).

51070682939 is a wasteful number, since it uses less digits than its factorization.

51070682939 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 410114.

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

The spelling of 51070682939 in words is "fifty-one billion, seventy million, six hundred eighty-two thousand, nine hundred thirty-nine".

Divisors: 1 19 79 83 1501 1577 6557 124583 409933 7788727 32384707 34024439 615309433 646464341 2687930681 51070682939