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18053350404 = 22361149916453
BaseRepresentation
bin10000110100000100…
…000100010000000100
31201121011120020000120
4100310010010100010
5243433124203104
612143225541540
71206243642435
oct206404042004
951534506016
1018053350404
117724711401
1235ba0448b0
1319192bc97b
14c3395748c
15709de5cd9
hex434104404

18053350404 has 48 divisors (see below), whose sum is σ = 42846216000. Its totient is φ = 5914823040.

The previous prime is 18053350391. The next prime is 18053350421. The reversal of 18053350404 is 40405335081.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1089042 + ... + 1105494.

It is an arithmetic number, because the mean of its divisors is an integer number (892629500).

Almost surely, 218053350404 is an apocalyptic number.

It is an amenable number.

18053350404 is an abundant number, since it is smaller than the sum of its proper divisors (24792865596).

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

18053350404 is a wasteful number, since it uses less digits than its factorization.

18053350404 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 18020 (or 18018 counting only the distinct ones).

The product of its (nonzero) digits is 28800, while the sum is 33.

Adding to 18053350404 its reverse (40405335081), we get a palindrome (58458685485).

The spelling of 18053350404 in words is "eighteen billion, fifty-three million, three hundred fifty thousand, four hundred four".

Divisors: 1 2 3 4 6 12 61 122 183 244 366 732 1499 2998 4497 5996 8994 16453 17988 32906 49359 65812 91439 98718 182878 197436 274317 365756 548634 1003633 1097268 2007266 3010899 4014532 6021798 12043596 24663047 49326094 73989141 98652188 147978282 295956564 1504445867 3008891734 4513337601 6017783468 9026675202 18053350404