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20338108 = 2273123431
BaseRepresentation
bin100110110010…
…1010110111100
31102021021122021
41031211112330
520201304413
62003525524
7334604530
oct115452674
942237567
1020338108
111053135a
1269898a4
1342a12ab
1429b5bc0
151bbb18d
hex13655bc

20338108 has 24 divisors (see below), whose sum is σ = 41990144. Its totient is φ = 8434800.

The previous prime is 20338099. The next prime is 20338111. The reversal of 20338108 is 80183302.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 10848 + ... + 12583.

Almost surely, 220338108 is an apocalyptic number.

20338108 is a gapful number since it is divisible by the number (28) formed by its first and last digit.

It is an amenable number.

20338108 is an abundant number, since it is smaller than the sum of its proper divisors (21652036).

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

20338108 is a wasteful number, since it uses less digits than its factorization.

20338108 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 23473 (or 23471 counting only the distinct ones).

The product of its (nonzero) digits is 1152, while the sum is 25.

The square root of 20338108 is about 4509.7791520206. The cubic root of 20338108 is about 272.9628326722.

The spelling of 20338108 in words is "twenty million, three hundred thirty-eight thousand, one hundred eight".

Divisors: 1 2 4 7 14 28 31 62 124 217 434 868 23431 46862 93724 164017 328034 656068 726361 1452722 2905444 5084527 10169054 20338108