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18620092 = 2212493727
BaseRepresentation
bin100011100000…
…1111010111100
31022000222222001
41013001322330
514231320332
61503032044
7314160661
oct107017274
938028861
1018620092
11a568607
12629b624
133b1c30a
142689a68
15197c0e7
hex11c1ebc

18620092 has 12 divisors (see below), whose sum is σ = 32620000. Its totient is φ = 9300096.

The previous prime is 18620089. The next prime is 18620101. The reversal of 18620092 is 29002681.

It is a happy number.

It is a self number, because there is not a number n which added to its sum of digits gives 18620092.

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 3 ways as a sum of consecutive naturals, for example, 3133 + ... + 6859.

Almost surely, 218620092 is an apocalyptic number.

It is an amenable number.

18620092 is a deficient number, since it is larger than the sum of its proper divisors (13999908).

18620092 is a wasteful number, since it uses less digits than its factorization.

18620092 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4980 (or 4978 counting only the distinct ones).

The product of its (nonzero) digits is 1728, while the sum is 28.

The square root of 18620092 is about 4315.1004623299. The cubic root of 18620092 is about 265.0496738494.

The spelling of 18620092 in words is "eighteen million, six hundred twenty thousand, ninety-two".

Divisors: 1 2 4 1249 2498 3727 4996 7454 14908 4655023 9310046 18620092