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204025147808 = 2537172318537
BaseRepresentation
bin1011111000000011011…
…0001011000110100000
3201111121212022101020212
42332000312023012200
511320320414212213
6233421114553252
720511635066546
oct2760066130640
9644555271225
10204025147808
1179587971339
123365b738828
1316316207141
149c368ddd96
155491a159a8
hex2f80d8b1a0

204025147808 has 24 divisors (see below), whose sum is σ = 412530579972. Its totient is φ = 99255476736.

The previous prime is 204025147793. The next prime is 204025147831. The reversal of 204025147808 is 808741520402.

It can be written as a sum of positive squares in 2 ways, for example, as 202150950544 + 1874197264 = 449612^2 + 43292^2 .

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 86158085 + ... + 86160452.

Almost surely, 2204025147808 is an apocalyptic number.

It is an amenable number.

204025147808 is an abundant number, since it is smaller than the sum of its proper divisors (208505432164).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

204025147808 is a wasteful number, since it uses less digits than its factorization.

204025147808 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 172318584 (or 172318576 counting only the distinct ones).

The product of its (nonzero) digits is 143360, while the sum is 41.

The spelling of 204025147808 in words is "two hundred four billion, twenty-five million, one hundred forty-seven thousand, eight hundred eight".

Divisors: 1 2 4 8 16 32 37 74 148 296 592 1184 172318537 344637074 689274148 1378548296 2757096592 5514193184 6375785869 12751571738 25503143476 51006286952 102012573904 204025147808