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42330131 = 673791667
BaseRepresentation
bin1010000101111…
…0100000010011
32221122121000122
42201132200103
541314031011
64111140455
71022541314
oct241364023
987577018
1042330131
1121992288
121221472b
138a0131c
14589c60b
153ab23db
hex285e813

42330131 has 8 divisors (see below), whose sum is σ = 43101120. Its totient is φ = 41563368.

The previous prime is 42330107. The next prime is 42330149. The reversal of 42330131 is 13103324.

It is a happy number.

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

It is a cyclic number.

It is not a de Polignac number, because 42330131 - 210 = 42329107 is a prime.

It is a super-2 number, since 2×423301312 = 3583679980954322, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (42330151) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 24560 + ... + 26226.

It is an arithmetic number, because the mean of its divisors is an integer number (5387640).

Almost surely, 242330131 is an apocalyptic number.

42330131 is a deficient number, since it is larger than the sum of its proper divisors (770989).

42330131 is a wasteful number, since it uses less digits than its factorization.

42330131 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2113.

The product of its (nonzero) digits is 216, while the sum is 17.

The square root of 42330131 is about 6506.1610032338. The cubic root of 42330131 is about 348.5110379391.

Adding to 42330131 its reverse (13103324), we get a palindrome (55433455).

The spelling of 42330131 in words is "forty-two million, three hundred thirty thousand, one hundred thirty-one".

Divisors: 1 67 379 1667 25393 111689 631793 42330131