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51764755142 = 2169718798117
BaseRepresentation
bin110000001101011010…
…110111101011000110
311221121120112000120102
4300031122313223012
51322003234131032
635440322204102
73511531105322
oct601532675306
9157546460512
1051764755142
111aa53944781
12a047ab3632
134b5c56c739
142710c70982
15152e78a362
hexc0d6b7ac6

51764755142 has 16 divisors (see below), whose sum is σ = 77743812960. Its totient is φ = 25850174208.

The previous prime is 51764755139. The next prime is 51764755151. The reversal of 51764755142 is 24155746715.

It is a super-2 number, since 2×517647551422 (a number of 22 digits) contains 22 as substring.

It is a congruent number.

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 7 ways as a sum of consecutive naturals, for example, 6373268 + ... + 6381384.

It is an arithmetic number, because the mean of its divisors is an integer number (4858988310).

Almost surely, 251764755142 is an apocalyptic number.

51764755142 is a deficient number, since it is larger than the sum of its proper divisors (25979057818).

51764755142 is a wasteful number, since it uses less digits than its factorization.

51764755142 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11695.

The product of its digits is 1176000, while the sum is 47.

The spelling of 51764755142 in words is "fifty-one billion, seven hundred sixty-four million, seven hundred fifty-five thousand, one hundred forty-two".

Divisors: 1 2 1697 1879 3394 3758 8117 16234 3188663 6377326 13774549 15251843 27549098 30503686 25882377571 51764755142