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42131590 = 254213159
BaseRepresentation
bin1010000010111…
…0000010000110
32221021111200021
42200232002012
541241202330
64103005354
71021053424
oct240560206
987244607
1042131590
11218670a6
121213985a
138961b47
14584a114
153a7367a
hex282e086

42131590 has 8 divisors (see below), whose sum is σ = 75836880. Its totient is φ = 16852632.

The previous prime is 42131563. The next prime is 42131597. The reversal of 42131590 is 9513124.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (42131597) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2106570 + ... + 2106589.

It is an arithmetic number, because the mean of its divisors is an integer number (9479610).

Almost surely, 242131590 is an apocalyptic number.

42131590 is a deficient number, since it is larger than the sum of its proper divisors (33705290).

42131590 is a wasteful number, since it uses less digits than its factorization.

42131590 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4213166.

The product of its (nonzero) digits is 1080, while the sum is 25.

The square root of 42131590 is about 6490.8851476513. The cubic root of 42131590 is about 347.9653101018.

The spelling of 42131590 in words is "forty-two million, one hundred thirty-one thousand, five hundred ninety".

Divisors: 1 2 5 10 4213159 8426318 21065795 42131590