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42353860 = 22517312241
BaseRepresentation
bin1010000110010…
…0010011000100
32221200210120111
42201210103010
541320310420
64111442404
71023000433
oct241442304
987623514
1042353860
11219a909a
1212226404
138a0c073
1458a711a
153ab945a
hex28644c4

42353860 has 24 divisors (see below), whose sum is σ = 89464536. Its totient is φ = 16842240.

The previous prime is 42353813. The next prime is 42353867. The reversal of 42353860 is 6835324.

It can be written as a sum of positive squares in 4 ways, for example, as 7496644 + 34857216 = 2738^2 + 5904^2 .

It is not an unprimeable number, because it can be changed into a prime (42353867) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2661 + ... + 9580.

It is an arithmetic number, because the mean of its divisors is an integer number (3727689).

Almost surely, 242353860 is an apocalyptic number.

It is an amenable number.

42353860 is an abundant number, since it is smaller than the sum of its proper divisors (47110676).

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

42353860 is a wasteful number, since it uses less digits than its factorization.

42353860 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12423 (or 12421 counting only the distinct ones).

The product of its (nonzero) digits is 17280, while the sum is 31.

The square root of 42353860 is about 6507.9843269633. The cubic root of 42353860 is about 348.5761473811.

The spelling of 42353860 in words is "forty-two million, three hundred fifty-three thousand, eight hundred sixty".

Divisors: 1 2 4 5 10 20 173 346 692 865 1730 3460 12241 24482 48964 61205 122410 244820 2117693 4235386 8470772 10588465 21176930 42353860