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82640950927 = 1929163791621
BaseRepresentation
bin100110011110111001…
…0001101011010001111
321220022101112021121021
41030331302031122033
52323222040412202
6101544214215011
75653630330663
oct1147562153217
9256271467537
1082640950927
1132058731657
1214024354467
137a40315382
143ddd7da8a3
15223a28ca37
hex133dc8d68f

82640950927 has 16 divisors (see below), whose sum is σ = 90046101600. Its totient is φ = 75544721280.

The previous prime is 82640950879. The next prime is 82640950949. The reversal of 82640950927 is 72905904628.

It is a cyclic number.

It is not a de Polignac number, because 82640950927 - 215 = 82640918159 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 (82640950957) 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, 856177 + ... + 947797.

It is an arithmetic number, because the mean of its divisors is an integer number (5627881350).

Almost surely, 282640950927 is an apocalyptic number.

82640950927 is a deficient number, since it is larger than the sum of its proper divisors (7405150673).

82640950927 is a wasteful number, since it uses less digits than its factorization.

82640950927 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 93306.

The product of its (nonzero) digits is 2177280, while the sum is 52.

The spelling of 82640950927 in words is "eighty-two billion, six hundred forty million, nine hundred fifty thousand, nine hundred twenty-seven".

Divisors: 1 19 29 551 1637 31103 47473 91621 901987 1740799 2657009 50483171 149983577 2849687963 4349523733 82640950927