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18334204080 = 243576392517
BaseRepresentation
bin10001000100110011…
…011100000010110000
31202022202001001211120
4101010303130002300
5300022024012310
612231141342240
71216224110013
oct210463340260
952282031746
1018334204080
1178591a8985
123678107980
131962545a8a
14c5cd8537a
157248c1b70
hex444cdc0b0

18334204080 has 40 divisors (see below), whose sum is σ = 56836033392. Its totient is φ = 4889121024.

The previous prime is 18334204019. The next prime is 18334204129. The reversal of 18334204080 is 8040243381.

It is a tau number, because it is divible by the number of its divisors (40).

It is a super-2 number, since 2×183342040802 (a number of 21 digits) contains 22 as substring.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 38196019 + ... + 38196498.

Almost surely, 218334204080 is an apocalyptic number.

18334204080 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

18334204080 is an abundant number, since it is smaller than the sum of its proper divisors (38501829312).

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

18334204080 is a wasteful number, since it uses less digits than its factorization.

18334204080 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 76392533 (or 76392527 counting only the distinct ones).

The product of its (nonzero) digits is 18432, while the sum is 33.

The spelling of 18334204080 in words is "eighteen billion, three hundred thirty-four million, two hundred four thousand, eighty".

Divisors: 1 2 3 4 5 6 8 10 12 15 16 20 24 30 40 48 60 80 120 240 76392517 152785034 229177551 305570068 381962585 458355102 611140136 763925170 916710204 1145887755 1222280272 1527850340 1833420408 2291775510 3055700680 3666840816 4583551020 6111401360 9167102040 18334204080