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18834285 = 351255619
BaseRepresentation
bin100011111011…
…0001101101101
31022102212210010
41013312031231
514310144120
61511403433
7316042311
oct107661555
938385703
1018834285
11a6a4528
126383579
133b95962
142703b41
1519c07e0
hex11f636d

18834285 has 8 divisors (see below), whose sum is σ = 30134880. Its totient is φ = 10044944.

The previous prime is 18834223. The next prime is 18834331. The reversal of 18834285 is 58243881.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 18834285 - 28 = 18834029 is a prime.

It is a super-2 number, since 2×188342852 = 709460582922450, which contains 22 as substring.

It is a Curzon number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 627795 + ... + 627824.

It is an arithmetic number, because the mean of its divisors is an integer number (3766860).

Almost surely, 218834285 is an apocalyptic number.

18834285 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

18834285 is a deficient number, since it is larger than the sum of its proper divisors (11300595).

18834285 is a wasteful number, since it uses less digits than its factorization.

18834285 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1255627.

The product of its digits is 61440, while the sum is 39.

The square root of 18834285 is about 4339.8484996599. The cubic root of 18834285 is about 266.0621192099.

The spelling of 18834285 in words is "eighteen million, eight hundred thirty-four thousand, two hundred eighty-five".

Divisors: 1 3 5 15 1255619 3766857 6278095 18834285