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20043168 = 253281743
BaseRepresentation
bin100110001110…
…1010110100000
31101201022001120
41030131112200
520112340133
61553332240
7332235615
oct114352640
941638046
1020043168
111034a802
126867080
1341c9c82
14293a50c
151b5dab3
hex131d5a0

20043168 has 48 divisors (see below), whose sum is σ = 52871616. Its totient is φ = 6648320.

The previous prime is 20043161. The next prime is 20043181. The reversal of 20043168 is 86134002.

It is a happy number.

It is a tau number, because it is divible by the number of its divisors (48).

It is a Harshad number since it is a multiple of its sum of digits (24).

It is not an unprimeable number, because it can be changed into a prime (20043161) 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 7 ways as a sum of consecutive naturals, for example, 26605 + ... + 27347.

It is an arithmetic number, because the mean of its divisors is an integer number (1101492).

Almost surely, 220043168 is an apocalyptic number.

It is an amenable number.

20043168 is an abundant number, since it is smaller than the sum of its proper divisors (32828448).

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

20043168 is a wasteful number, since it uses less digits than its factorization.

20043168 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1037 (or 1029 counting only the distinct ones).

The product of its (nonzero) digits is 1152, while the sum is 24.

The square root of 20043168 is about 4476.9596826418. The cubic root of 20043168 is about 271.6369146202.

The spelling of 20043168 in words is "twenty million, forty-three thousand, one hundred sixty-eight".

Divisors: 1 2 3 4 6 8 12 16 24 32 48 96 281 562 743 843 1124 1486 1686 2229 2248 2972 3372 4458 4496 5944 6744 8916 8992 11888 13488 17832 23776 26976 35664 71328 208783 417566 626349 835132 1252698 1670264 2505396 3340528 5010792 6681056 10021584 20043168