Search a number
-
+
18828950 = 2527232339
BaseRepresentation
bin100011111010…
…0111010010110
31022102121110112
41013310322112
514310011300
61511323022
7316020620
oct107647226
938377415
1018828950
11a6a0518
126380472
133b933ba
142701c10
1519bde35
hex11f4e96

18828950 has 48 divisors (see below), whose sum is σ = 41783040. Its totient is φ = 6172320.

The previous prime is 18828947. The next prime is 18828977. The reversal of 18828950 is 5982881.

It is a Smith number, since the sum of its digits (41) coincides with the sum of the digits of its prime factors.

It is a junction number, because it is equal to n+sod(n) for n = 18828898 and 18828907.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 6881 + ... + 9219.

It is an arithmetic number, because the mean of its divisors is an integer number (870480).

Almost surely, 218828950 is an apocalyptic number.

18828950 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

18828950 is an abundant number, since it is smaller than the sum of its proper divisors (22954090).

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

18828950 is a wasteful number, since it uses less digits than its factorization.

18828950 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2381 (or 2376 counting only the distinct ones).

The product of its (nonzero) digits is 46080, while the sum is 41.

The square root of 18828950 is about 4339.2338033344. The cubic root of 18828950 is about 266.0369952502.

The spelling of 18828950 in words is "eighteen million, eight hundred twenty-eight thousand, nine hundred fifty".

Divisors: 1 2 5 7 10 14 23 25 35 46 50 70 115 161 175 230 322 350 575 805 1150 1610 2339 4025 4678 8050 11695 16373 23390 32746 53797 58475 81865 107594 116950 163730 268985 376579 409325 537970 753158 818650 1344925 1882895 2689850 3765790 9414475 18828950