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80298083725 = 5235316135641
BaseRepresentation
bin100101011001000100…
…0111000010110001101
321200021010000021222221
41022302020320112031
52303422302134400
6100515522335341
75541601310236
oct1126210702615
9250233007887
1080298083725
11310661a1872
121368b7ba551
137758b11612
143c5a5b008d
15214e74ec1a
hex12b223858d

80298083725 has 24 divisors (see below), whose sum is σ = 99931307112. Its totient is φ = 64005427200.

The previous prime is 80298083717. The next prime is 80298083737. The reversal of 80298083725 is 52738089208.

It can be written as a sum of positive squares in 12 ways, for example, as 2552472484 + 77745611241 = 50522^2 + 278829^2 .

It is not a de Polignac number, because 80298083725 - 23 = 80298083717 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 23 ways as a sum of consecutive naturals, for example, 14231905 + ... + 14237545.

It is an arithmetic number, because the mean of its divisors is an integer number (4163804463).

Almost surely, 280298083725 is an apocalyptic number.

It is an amenable number.

80298083725 is a deficient number, since it is larger than the sum of its proper divisors (19633223387).

80298083725 is a wasteful number, since it uses less digits than its factorization.

80298083725 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7617 (or 7612 counting only the distinct ones).

The product of its (nonzero) digits is 1935360, while the sum is 52.

The spelling of 80298083725 in words is "eighty billion, two hundred ninety-eight million, eighty-three thousand, seven hundred twenty-five".

Divisors: 1 5 25 353 1613 1765 5641 8065 8825 28205 40325 141025 569389 1991273 2846945 9098933 9956365 14234725 45494665 49781825 227473325 3211923349 16059616745 80298083725