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20234943 = 3219731621
BaseRepresentation
bin100110100110…
…0001010111111
31102002001010100
41031030022333
520140004233
62001412143
7333665001
oct115141277
942061110
1020234943
11104708a3
12693a053
134266351
14298a371
151b9a813
hex134c2bf

20234943 has 24 divisors (see below), whose sum is σ = 31207280. Its totient is φ = 12597120.

The previous prime is 20234941. The next prime is 20234959. The reversal of 20234943 is 34943202.

It is a happy number.

It is not a de Polignac number, because 20234943 - 21 = 20234941 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20234941) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 11673 + ... + 13293.

Almost surely, 220234943 is an apocalyptic number.

20234943 is a deficient number, since it is larger than the sum of its proper divisors (10972337).

20234943 is a wasteful number, since it uses less digits than its factorization.

20234943 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1719 (or 1716 counting only the distinct ones).

The product of its (nonzero) digits is 5184, while the sum is 27.

The square root of 20234943 is about 4498.3266888922. The cubic root of 20234943 is about 272.5005156683.

The spelling of 20234943 in words is "twenty million, two hundred thirty-four thousand, nine hundred forty-three".

Divisors: 1 3 9 19 57 73 171 219 657 1387 1621 4161 4863 12483 14589 30799 92397 118333 277191 354999 1064997 2248327 6744981 20234943