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42183231 = 315789561
BaseRepresentation
bin1010000011101…
…0101000111111
32221101010111220
42200322220333
541244330411
64104044423
71021360116
oct240725077
987333456
1042183231
11218a1982
1212163713
13897c4bc
145860c7d
153a83b06
hex283aa3f

42183231 has 8 divisors (see below), whose sum is σ = 56603184. Its totient is φ = 27942720.

The previous prime is 42183227. The next prime is 42183257. The reversal of 42183231 is 13238124.

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

It is not a de Polignac number, because 42183231 - 22 = 42183227 is a prime.

It is a super-2 number, since 2×421832312 = 3558849955198722, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (42183931) 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, 44310 + ... + 45251.

It is an arithmetic number, because the mean of its divisors is an integer number (7075398).

Almost surely, 242183231 is an apocalyptic number.

42183231 is a deficient number, since it is larger than the sum of its proper divisors (14419953).

42183231 is a wasteful number, since it uses less digits than its factorization.

42183231 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 89721.

The product of its digits is 1152, while the sum is 24.

The square root of 42183231 is about 6494.8618922961. The cubic root of 42183231 is about 348.1074199366.

The spelling of 42183231 in words is "forty-two million, one hundred eighty-three thousand, two hundred thirty-one".

Divisors: 1 3 157 471 89561 268683 14061077 42183231