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85930247679 = 343701950251
BaseRepresentation
bin101000000000111010…
…1111000010111111111
322012210121220212110220
41100001311320113333
52401441120411204
6103250435232423
76131301024303
oct1200165702777
9265717825426
1085930247679
1133496425a21
12147a1a48713
13814591aa03
1442325cbd03
15237de291d9
hex1401d785ff

85930247679 has 16 divisors (see below), whose sum is σ = 117405535104. Its totient is φ = 55874700000.

The previous prime is 85930247677. The next prime is 85930247707. The reversal of 85930247679 is 97674203958.

It is not a de Polignac number, because 85930247679 - 21 = 85930247677 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (85930247677) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 384697 + ... + 565554.

It is an arithmetic number, because the mean of its divisors is an integer number (7337845944).

Almost surely, 285930247679 is an apocalyptic number.

85930247679 is a deficient number, since it is larger than the sum of its proper divisors (31475287425).

85930247679 is a wasteful number, since it uses less digits than its factorization.

85930247679 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 950998.

The product of its (nonzero) digits is 22861440, while the sum is 60.

The spelling of 85930247679 in words is "eighty-five billion, nine hundred thirty million, two hundred forty-seven thousand, six hundred seventy-nine".

Divisors: 1 3 43 129 701 2103 30143 90429 950251 2850753 40860793 122582379 666125951 1998377853 28643415893 85930247679