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20223942 = 231929337
BaseRepresentation
bin100110100100…
…1011111000110
31102001111000220
41031021133012
520134131232
62001245210
7333620634
oct115113706
942044026
1020223942
1110463602
126933806
13426133b
142986354
151b9742c
hex13497c6

20223942 has 24 divisors (see below), whose sum is σ = 42693336. Its totient is φ = 6385824.

The previous prime is 20223913. The next prime is 20223943. The reversal of 20223942 is 24932202.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20223943) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 2503 + ... + 6834.

It is an arithmetic number, because the mean of its divisors is an integer number (1778889).

Almost surely, 220223942 is an apocalyptic number.

20223942 is an abundant number, since it is smaller than the sum of its proper divisors (22469394).

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

20223942 is a wasteful number, since it uses less digits than its factorization.

20223942 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9380 (or 9361 counting only the distinct ones).

The product of its (nonzero) digits is 1728, while the sum is 24.

The square root of 20223942 is about 4497.1037346274. The cubic root of 20223942 is about 272.4511238547.

The spelling of 20223942 in words is "twenty million, two hundred twenty-three thousand, nine hundred forty-two".

Divisors: 1 2 3 6 19 38 57 114 361 722 1083 2166 9337 18674 28011 56022 177403 354806 532209 1064418 3370657 6741314 10111971 20223942