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20338368 = 263105929
BaseRepresentation
bin100110110010…
…1011011000000
31102021021222220
41031211123000
520201311433
62003531040
7334605351
oct115453300
942237886
1020338368
1110531576
126989a80
1342a144b
1429b5d28
151bbb2b3
hex13656c0

20338368 has 28 divisors (see below), whose sum is σ = 53812440. Its totient is φ = 6779392.

The previous prime is 20338363. The next prime is 20338393. The reversal of 20338368 is 86383302.

It is not an unprimeable number, because it can be changed into a prime (20338363) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 52773 + ... + 53156.

Almost surely, 220338368 is an apocalyptic number.

It is an amenable number.

20338368 is an abundant number, since it is smaller than the sum of its proper divisors (33474072).

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

20338368 is a wasteful number, since it uses less digits than its factorization.

20338368 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 105944 (or 105934 counting only the distinct ones).

The product of its (nonzero) digits is 20736, while the sum is 33.

The square root of 20338368 is about 4509.8079781738. The cubic root of 20338368 is about 272.9639958422.

It can be divided in two parts, 20338 and 368, that added together give a triangular number (20706 = T203).

The spelling of 20338368 in words is "twenty million, three hundred thirty-eight thousand, three hundred sixty-eight".

Divisors: 1 2 3 4 6 8 12 16 24 32 48 64 96 192 105929 211858 317787 423716 635574 847432 1271148 1694864 2542296 3389728 5084592 6779456 10169184 20338368