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20108792 = 2311228509
BaseRepresentation
bin100110010110…
…1010111111000
31101211122002002
41030231113320
520121440132
61555000132
7332631134
oct114552770
941748062
1020108792
1110395040
126899048
134220ac2
1429563c4
151b73262
hex132d5f8

20108792 has 16 divisors (see below), whose sum is σ = 41131800. Its totient is φ = 9140320.

The previous prime is 20108789. The next prime is 20108813. The reversal of 20108792 is 29780102.

It is a happy number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 114167 + ... + 114342.

Almost surely, 220108792 is an apocalyptic number.

20108792 is a gapful number since it is divisible by the number (22) formed by its first and last digit.

It is an amenable number.

20108792 is an abundant number, since it is smaller than the sum of its proper divisors (21023008).

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

20108792 is a wasteful number, since it uses less digits than its factorization.

20108792 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 228526 (or 228522 counting only the distinct ones).

The product of its (nonzero) digits is 2016, while the sum is 29.

The square root of 20108792 is about 4484.2827743130. The cubic root of 20108792 is about 271.9330501314.

Adding to 20108792 its reverse (29780102), we get a palindrome (49888894).

The spelling of 20108792 in words is "twenty million, one hundred eight thousand, seven hundred ninety-two".

Divisors: 1 2 4 8 11 22 44 88 228509 457018 914036 1828072 2513599 5027198 10054396 20108792