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20235942 = 2321124219
BaseRepresentation
bin100110100110…
…0011010100110
31102002002111100
41031030122212
520140022232
62001420530
7334000626
oct115143246
942062440
1020235942
1110471621
12693a746
13426693c
14298a886
151b9ac7c
hex134c6a6

20235942 has 12 divisors (see below), whose sum is σ = 43844580. Its totient is φ = 6745308.

The previous prime is 20235911. The next prime is 20235949. The reversal of 20235942 is 24953202.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20235949) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 562092 + ... + 562127.

It is an arithmetic number, because the mean of its divisors is an integer number (3653715).

Almost surely, 220235942 is an apocalyptic number.

20235942 is an abundant number, since it is smaller than the sum of its proper divisors (23608638).

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

20235942 is a wasteful number, since it uses less digits than its factorization.

20235942 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1124227 (or 1124224 counting only the distinct ones).

The product of its (nonzero) digits is 4320, while the sum is 27.

The square root of 20235942 is about 4498.4377288121. The cubic root of 20235942 is about 272.5050000485.

The spelling of 20235942 in words is "twenty million, two hundred thirty-five thousand, nine hundred forty-two".

Divisors: 1 2 3 6 9 18 1124219 2248438 3372657 6745314 10117971 20235942