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18852285 = 351256819
BaseRepresentation
bin100011111101…
…0100110111101
31022110210110210
41013322212331
514311233120
61512023033
7316145634
oct107724675
938423423
1018852285
11a707001
126391a79
133ba0bca
14270a51b
1519c5ce0
hex11fa9bd

18852285 has 8 divisors (see below), whose sum is σ = 30163680. Its totient is φ = 10054544.

The previous prime is 18852283. The next prime is 18852287. The reversal of 18852285 is 58225881.

It is an interprime number because it is at equal distance from previous prime (18852283) and next prime (18852287).

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 18852285 - 21 = 18852283 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (18852283) 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, 628395 + ... + 628424.

It is an arithmetic number, because the mean of its divisors is an integer number (3770460).

Almost surely, 218852285 is an apocalyptic number.

18852285 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

18852285 is a deficient number, since it is larger than the sum of its proper divisors (11311395).

18852285 is a wasteful number, since it uses less digits than its factorization.

18852285 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1256827.

The product of its digits is 51200, while the sum is 39.

The square root of 18852285 is about 4341.9218095217. The cubic root of 18852285 is about 266.1468510928.

The spelling of 18852285 in words is "eighteen million, eight hundred fifty-two thousand, two hundred eighty-five".

Divisors: 1 3 5 15 1256819 3770457 6284095 18852285