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204153950380 = 22579129211361
BaseRepresentation
bin1011111000100010000…
…1100001000010101100
3201111221211200020011111
42332020201201002230
511321101402403010
6233441555401404
720515060642342
oct2761041410254
9644854606144
10204153950380
1179643645646
12336968b3264
1316336ac3893
149c49a6b992
15549cea958a
hex2f888610ac

204153950380 has 24 divisors (see below), whose sum is σ = 434150176320. Its totient is φ = 80627888640.

The previous prime is 204153950369. The next prime is 204153950401. The reversal of 204153950380 is 83059351402.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 64604101 + ... + 64607260.

It is an arithmetic number, because the mean of its divisors is an integer number (18089590680).

Almost surely, 2204153950380 is an apocalyptic number.

204153950380 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

204153950380 is an abundant number, since it is smaller than the sum of its proper divisors (229996225940).

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

204153950380 is a wasteful number, since it uses less digits than its factorization.

204153950380 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 129211449 (or 129211447 counting only the distinct ones).

The product of its (nonzero) digits is 129600, while the sum is 40.

The spelling of 204153950380 in words is "two hundred four billion, one hundred fifty-three million, nine hundred fifty thousand, three hundred eighty".

Divisors: 1 2 4 5 10 20 79 158 316 395 790 1580 129211361 258422722 516845444 646056805 1292113610 2584227220 10207697519 20415395038 40830790076 51038487595 102076975190 204153950380