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20236368 = 2431922189
BaseRepresentation
bin100110100110…
…0100001010000
31102002010002010
41031030201100
520140030433
62001422520
7334002105
oct115144120
942063063
1020236368
1110471979
12693aa40
134266ba9
14298aaac
151b9ae63
hex134c850

20236368 has 40 divisors (see below), whose sum is σ = 55031200. Its totient is φ = 6390144.

The previous prime is 20236361. The next prime is 20236423. The reversal of 20236368 is 86363202.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20236361) 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, 10183 + ... + 12006.

It is an arithmetic number, because the mean of its divisors is an integer number (1375780).

Almost surely, 220236368 is an apocalyptic number.

It is an amenable number.

20236368 is an abundant number, since it is smaller than the sum of its proper divisors (34794832).

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

20236368 is a wasteful number, since it uses less digits than its factorization.

20236368 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 22219 (or 22213 counting only the distinct ones).

The product of its (nonzero) digits is 10368, while the sum is 30.

The square root of 20236368 is about 4498.4850783347. The cubic root of 20236368 is about 272.5069122619.

The spelling of 20236368 in words is "twenty million, two hundred thirty-six thousand, three hundred sixty-eight".

Divisors: 1 2 3 4 6 8 12 16 19 24 38 48 57 76 114 152 228 304 456 912 22189 44378 66567 88756 133134 177512 266268 355024 421591 532536 843182 1065072 1264773 1686364 2529546 3372728 5059092 6745456 10118184 20236368