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82516747823 = 439257972883
BaseRepresentation
bin100110011011001100…
…0011010011000101111
321212222201211002222022
41030312120122120233
52322443241412243
6101524020140355
75650561532546
oct1146630323057
9255881732868
1082516747823
1131aa4609a64
1213baa8376bb
137a20679303
143dcb10915d
15222e406b68
hex133661a62f

82516747823 has 8 divisors (see below), whose sum is σ = 82737916800. Its totient is φ = 82295730648.

The previous prime is 82516747811. The next prime is 82516747853. The reversal of 82516747823 is 32874761528.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2k-82516747823 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (82516747853) 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 7 ways as a sum of consecutive naturals, for example, 1095740 + ... + 1168622.

It is an arithmetic number, because the mean of its divisors is an integer number (10342239600).

Almost surely, 282516747823 is an apocalyptic number.

82516747823 is a deficient number, since it is larger than the sum of its proper divisors (221168977).

82516747823 is a wasteful number, since it uses less digits than its factorization.

82516747823 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 75901.

The product of its digits is 4515840, while the sum is 53.

The spelling of 82516747823 in words is "eighty-two billion, five hundred sixteen million, seven hundred forty-seven thousand, eight hundred twenty-three".

Divisors: 1 439 2579 72883 1132181 31995637 187965257 82516747823