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18803234916 = 2233473704341
BaseRepresentation
bin10001100000110000…
…101001100001100100
31210112102121022012000
4101200300221201210
5302002112004131
612345454325300
71233650600604
oct214060514144
953472538160
1018803234916
117a79a32774
1237891b9830
131a08776a0b
14ca5398c04
15750b6dce6
hex460c29864

18803234916 has 48 divisors (see below), whose sum is σ = 49786356480. Its totient is φ = 6134387040.

The previous prime is 18803234911. The next prime is 18803234927. The reversal of 18803234916 is 61943230881.

It is not an unprimeable number, because it can be changed into a prime (18803234911) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1847095 + ... + 1857246.

It is an arithmetic number, because the mean of its divisors is an integer number (1037215760).

Almost surely, 218803234916 is an apocalyptic number.

It is an amenable number.

18803234916 is an abundant number, since it is smaller than the sum of its proper divisors (30983121564).

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

18803234916 is a wasteful number, since it uses less digits than its factorization.

18803234916 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3704401 (or 3704393 counting only the distinct ones).

The product of its (nonzero) digits is 248832, while the sum is 45.

The spelling of 18803234916 in words is "eighteen billion, eight hundred three million, two hundred thirty-four thousand, nine hundred sixteen".

Divisors: 1 2 3 4 6 9 12 18 27 36 47 54 94 108 141 188 282 423 564 846 1269 1692 2538 5076 3704341 7408682 11113023 14817364 22226046 33339069 44452092 66678138 100017207 133356276 174104027 200034414 348208054 400068828 522312081 696416108 1044624162 1566936243 2089248324 3133872486 4700808729 6267744972 9401617458 18803234916