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51940960195 = 5313711380149
BaseRepresentation
bin110000010111111011…
…000010011111000011
311222001212002011110111
4300113323002133003
51322333341211240
635510015012151
73516100606555
oct602773023703
9158055064414
1051940960195
1120034355193
12a096b0a057
134b89c15197
14272a41b4d5
15153ee941ea
hexc17ec27c3

51940960195 has 32 divisors (see below), whose sum is σ = 66664281600. Its totient is φ = 38778808320.

The previous prime is 51940960189. The next prime is 51940960207. The reversal of 51940960195 is 59106904915.

It is not a de Polignac number, because 51940960195 - 23 = 51940960187 is a prime.

It is an unprimeable number.

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, 607981 + ... + 688129.

It is an arithmetic number, because the mean of its divisors is an integer number (2083258800).

Almost surely, 251940960195 is an apocalyptic number.

51940960195 is a deficient number, since it is larger than the sum of its proper divisors (14723321405).

51940960195 is a wasteful number, since it uses less digits than its factorization.

51940960195 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 80335.

The product of its (nonzero) digits is 437400, while the sum is 49.

The spelling of 51940960195 in words is "fifty-one billion, nine hundred forty million, nine hundred sixty thousand, one hundred ninety-five".

Divisors: 1 5 31 37 113 155 185 565 1147 3503 4181 5735 17515 20905 80149 129611 400745 648055 2484619 2965513 9056837 12423095 14827565 45284185 91930903 280761947 335102969 459654515 1403809735 1675514845 10388192039 51940960195