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80858905641 = 3319915049117
BaseRepresentation
bin100101101001110010…
…0001111110000101001
321201201012022000001000
41023103210033300221
52311044334440031
6101051314545213
75561521233453
oct1132344176051
9251635260030
1080858905641
1131323820658
1213807598209
1378180707c7
143cb0c792d3
152183ace3e6
hex12d390fc29

80858905641 has 16 divisors (see below), whose sum is σ = 120392944000. Its totient is φ = 53635049424.

The previous prime is 80858905619. The next prime is 80858905697. The reversal of 80858905641 is 14650985808.

It is a happy number.

80858905641 is a `hidden beast` number, since 8 + 0 + 8 + 589 + 0 + 56 + 4 + 1 = 666.

It is not a de Polignac number, because 80858905641 - 27 = 80858905513 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (80858905541) 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, 7519186 + ... + 7529931.

It is an arithmetic number, because the mean of its divisors is an integer number (7524559000).

Almost surely, 280858905641 is an apocalyptic number.

It is an amenable number.

80858905641 is a deficient number, since it is larger than the sum of its proper divisors (39534038359).

80858905641 is a wasteful number, since it uses less digits than its factorization.

80858905641 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 15049325 (or 15049319 counting only the distinct ones).

The product of its (nonzero) digits is 2764800, while the sum is 54.

The spelling of 80858905641 in words is "eighty billion, eight hundred fifty-eight million, nine hundred five thousand, six hundred forty-one".

Divisors: 1 3 9 27 199 597 1791 5373 15049117 45147351 135442053 406326159 2994774283 8984322849 26952968547 80858905641