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204508253884 = 221110345125387
BaseRepresentation
bin1011111001110110100…
…1000100111010111100
3201112212112100201012111
42332131221010322330
511322313103111014
6233541053343404
720526622322224
oct2763551047274
9645775321174
10204508253884
117980563a060
1233775497b64
131639232581c
149c80b39084
1554be1432c4
hex2f9da44ebc

204508253884 has 24 divisors (see below), whose sum is σ = 394215389568. Its totient is φ = 92055787440.

The previous prime is 204508253881. The next prime is 204508253903. The reversal of 204508253884 is 488352805402.

It is a happy number.

It is a super-3 number, since 3×2045082538843 (a number of 35 digits) contains 333 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (204508253881) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 22558162 + ... + 22567225.

It is an arithmetic number, because the mean of its divisors is an integer number (16425641232).

Almost surely, 2204508253884 is an apocalyptic number.

It is an amenable number.

204508253884 is a deficient number, since it is larger than the sum of its proper divisors (189707135684).

204508253884 is a wasteful number, since it uses less digits than its factorization.

204508253884 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 45125505 (or 45125503 counting only the distinct ones).

The product of its (nonzero) digits is 2457600, while the sum is 49.

The spelling of 204508253884 in words is "two hundred four billion, five hundred eight million, two hundred fifty-three thousand, eight hundred eighty-four".

Divisors: 1 2 4 11 22 44 103 206 412 1133 2266 4532 45125387 90250774 180501548 496379257 992758514 1985517028 4647914861 9295829722 18591659444 51127063471 102254126942 204508253884