Search a number
-
+
18952836 = 2237225629
BaseRepresentation
bin100100001001…
…1001010000100
31022122220101220
41020103022010
514322442321
61514120340
7320045040
oct110231204
938586356
1018952836
11a775601
1264200b0
133c078c6
142735020
1519e59c6
hex1213284

18952836 has 24 divisors (see below), whose sum is σ = 50541120. Its totient is φ = 5415072.

The previous prime is 18952819. The next prime is 18952837. The reversal of 18952836 is 63825981.

It is a Harshad number since it is a multiple of its sum of digits (42).

It is not an unprimeable number, because it can be changed into a prime (18952837) 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, 112731 + ... + 112898.

It is an arithmetic number, because the mean of its divisors is an integer number (2105880).

Almost surely, 218952836 is an apocalyptic number.

It is an amenable number.

18952836 is an abundant number, since it is smaller than the sum of its proper divisors (31588284).

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

18952836 is a wasteful number, since it uses less digits than its factorization.

18952836 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 225643 (or 225641 counting only the distinct ones).

The product of its digits is 103680, while the sum is 42.

The square root of 18952836 is about 4353.4855001481. The cubic root of 18952836 is about 266.6191880750.

The spelling of 18952836 in words is "eighteen million, nine hundred fifty-two thousand, eight hundred thirty-six".

Divisors: 1 2 3 4 6 7 12 14 21 28 42 84 225629 451258 676887 902516 1353774 1579403 2707548 3158806 4738209 6317612 9476418 18952836