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51382230085 = 522091465187
BaseRepresentation
bin101111110110100111…
…101001110001000101
311220121220201201211201
4233312213221301011
51320212322330320
635334335302501
73466204515034
oct576647516105
9156556651751
1051382230085
111a877a24a6a
129b5b97aa31
134acb239154
1426b613871b
15150adc970a
hexbf69e9c45

51382230085 has 8 divisors (see below), whose sum is σ = 61661599776. Its totient is φ = 41103834960.

The previous prime is 51382230071. The next prime is 51382230121. The reversal of 51382230085 is 58003228315.

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

It is not a de Polignac number, because 51382230085 - 227 = 51248012357 is a prime.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 122139 + ... + 343048.

It is an arithmetic number, because the mean of its divisors is an integer number (7707699972).

Almost surely, 251382230085 is an apocalyptic number.

It is an amenable number.

51382230085 is a deficient number, since it is larger than the sum of its proper divisors (10279369691).

51382230085 is a wasteful number, since it uses less digits than its factorization.

51382230085 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 487283.

The product of its (nonzero) digits is 57600, while the sum is 37.

The spelling of 51382230085 in words is "fifty-one billion, three hundred eighty-two million, two hundred thirty thousand, eighty-five".

Divisors: 1 5 22091 110455 465187 2325935 10276446017 51382230085