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204920290884148 = 22757524912722459
BaseRepresentation
bin101110100101111110111001…
…001001010011101000110100
3222212120012002101222120000121
4232211332321021103220310
5203324403223431243043
62003455025415021324
761110000560630050
oct5645767111235064
9885505071876017
10204920290884148
115a326230a41354
121ab96b1296a844
138a45b92576b28
1438862a3110c60
1518a56a8aeeded
hexba5fb9253a34

204920290884148 has 24 divisors (see below), whose sum is σ = 409841326440000. Its totient is φ = 87822822235008.

The previous prime is 204920290884137. The next prime is 204920290884173. The reversal of 204920290884148 is 841488092029402.

It is a congruent number.

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, 9745743 + ... + 22468201.

It is an arithmetic number, because the mean of its divisors is an integer number (17076721935000).

Almost surely, 2204920290884148 is an apocalyptic number.

204920290884148 is a gapful number since it is divisible by the number (28) formed by its first and last digit.

It is an amenable number.

204920290884148 is an abundant number, since it is smaller than the sum of its proper divisors (204921035555852).

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

204920290884148 is a wasteful number, since it uses less digits than its factorization.

204920290884148 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 13297719 (or 13297717 counting only the distinct ones).

The product of its (nonzero) digits is 21233664, while the sum is 61.

The spelling of 204920290884148 in words is "two hundred four trillion, nine hundred twenty billion, two hundred ninety million, eight hundred eighty-four thousand, one hundred forty-eight".

Divisors: 1 2 4 7 14 28 575249 1150498 2300996 4026743 8053486 12722459 16106972 25444918 50889836 89057213 178114426 356228852 7318581817291 14637163634582 29274327269164 51230072721037 102460145442074 204920290884148