Search a number
-
+
20238108 = 22311153319
BaseRepresentation
bin100110100110…
…0111100011100
31102002012110120
41031030330130
520140104413
62001434540
7334010142
oct115147434
942065416
1020238108
1110473210
12693ba50
134267917
14298b592
151b9b723
hex134cf1c

20238108 has 24 divisors (see below), whose sum is σ = 51515520. Its totient is φ = 6132720.

The previous prime is 20238089. The next prime is 20238131. The reversal of 20238108 is 80183202.

It is a congruent number.

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, 76528 + ... + 76791.

It is an arithmetic number, because the mean of its divisors is an integer number (2146480).

Almost surely, 220238108 is an apocalyptic number.

It is an amenable number.

20238108 is an abundant number, since it is smaller than the sum of its proper divisors (31277412).

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

20238108 is a wasteful number, since it uses less digits than its factorization.

20238108 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 153337 (or 153335 counting only the distinct ones).

The product of its (nonzero) digits is 768, while the sum is 24.

The square root of 20238108 is about 4498.6784726184. The cubic root of 20238108 is about 272.5147224321.

The spelling of 20238108 in words is "twenty million, two hundred thirty-eight thousand, one hundred eight".

Divisors: 1 2 3 4 6 11 12 22 33 44 66 132 153319 306638 459957 613276 919914 1686509 1839828 3373018 5059527 6746036 10119054 20238108