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18314270 = 2513178287
BaseRepresentation
bin100010111011…
…1010000011110
31021110110110022
41011313100132
514142024040
61452312142
7311445242
oct105672036
937413408
1018314270
11a379867
126172652
133a43060
14260a422
15191b6b5
hex117741e

18314270 has 32 divisors (see below), whose sum is σ = 37594368. Its totient is φ = 6363648.

The previous prime is 18314267. The next prime is 18314281. The reversal of 18314270 is 7241381.

It is a Harshad number since it is a multiple of its sum of digits (26).

It is a congruent number.

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 15 ways as a sum of consecutive naturals, for example, 1934 + ... + 6353.

It is an arithmetic number, because the mean of its divisors is an integer number (1174824).

Almost surely, 218314270 is an apocalyptic number.

18314270 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

18314270 is an abundant number, since it is smaller than the sum of its proper divisors (19280098).

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

18314270 is a wasteful number, since it uses less digits than its factorization.

18314270 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8324.

The product of its (nonzero) digits is 1344, while the sum is 26.

The square root of 18314270 is about 4279.5174961671. The cubic root of 18314270 is about 263.5905709748.

The spelling of 18314270 in words is "eighteen million, three hundred fourteen thousand, two hundred seventy".

Divisors: 1 2 5 10 13 17 26 34 65 85 130 170 221 442 1105 2210 8287 16574 41435 82870 107731 140879 215462 281758 538655 704395 1077310 1408790 1831427 3662854 9157135 18314270