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18628314 = 234097591
BaseRepresentation
bin100011100001…
…1111011011010
31022001102020120
41013003323122
514232101224
61503134110
7314223645
oct107037332
938042216
1018628314
11a573801
1262a4336
133b22c93
14268ca5c
15197e779
hex11c3eda

18628314 has 16 divisors (see below), whose sum is σ = 37352640. Its totient is φ = 6193440.

The previous prime is 18628307. The next prime is 18628319. The reversal of 18628314 is 41382681.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (18628319) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1342 + ... + 6249.

It is an arithmetic number, because the mean of its divisors is an integer number (2334540).

Almost surely, 218628314 is an apocalyptic number.

18628314 is an abundant number, since it is smaller than the sum of its proper divisors (18724326).

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

18628314 is a wasteful number, since it uses less digits than its factorization.

18628314 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8005.

The product of its digits is 9216, while the sum is 33.

The square root of 18628314 is about 4316.0530580613. The cubic root of 18628314 is about 265.0886804189.

The spelling of 18628314 in words is "eighteen million, six hundred twenty-eight thousand, three hundred fourteen".

Divisors: 1 2 3 6 409 818 1227 2454 7591 15182 22773 45546 3104719 6209438 9314157 18628314