Search a number
-
+
18828498 = 2313241391
BaseRepresentation
bin100011111010…
…0110011010010
31022102120211210
41013310303102
514310002443
61511320550
7316016403
oct107646322
938376753
1018828498
11a6a0147
126380156
133b93130
1427019aa
1519bdc33
hex11f4cd2

18828498 has 16 divisors (see below), whose sum is σ = 40553856. Its totient is φ = 5793360.

The previous prime is 18828479. The next prime is 18828517. The reversal of 18828498 is 89482881.

It is an interprime number because it is at equal distance from previous prime (18828479) and next prime (18828517).

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 7 ways as a sum of consecutive naturals, for example, 120618 + ... + 120773.

It is an arithmetic number, because the mean of its divisors is an integer number (2534616).

Almost surely, 218828498 is an apocalyptic number.

18828498 is an abundant number, since it is smaller than the sum of its proper divisors (21725358).

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

18828498 is a wasteful number, since it uses less digits than its factorization.

18828498 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 241409.

The product of its digits is 294912, while the sum is 48.

The square root of 18828498 is about 4339.1817200942. The cubic root of 18828498 is about 266.0348664417.

The spelling of 18828498 in words is "eighteen million, eight hundred twenty-eight thousand, four hundred ninety-eight".

Divisors: 1 2 3 6 13 26 39 78 241391 482782 724173 1448346 3138083 6276166 9414249 18828498