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42231199 = 217919381
BaseRepresentation
bin1010000100011…
…0010110011111
32221110120022111
42201012112133
541302344244
64105054451
71021650013
oct241062637
987416274
1042231199
1121924a1a
1212187427
13899829a
145874543
153a92e34
hex284659f

42231199 has 4 divisors (see below), whose sum is σ = 42252760. Its totient is φ = 42209640.

The previous prime is 42231191. The next prime is 42231223. The reversal of 42231199 is 99113224.

42231199 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 42231199 - 23 = 42231191 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 42231199.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (42231191) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 7512 + ... + 11869.

It is an arithmetic number, because the mean of its divisors is an integer number (10563190).

Almost surely, 242231199 is an apocalyptic number.

42231199 is a deficient number, since it is larger than the sum of its proper divisors (21561).

42231199 is a wasteful number, since it uses less digits than its factorization.

42231199 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 21560.

The product of its digits is 3888, while the sum is 31.

The square root of 42231199 is about 6498.5536083039. The cubic root of 42231199 is about 348.2393182528.

The spelling of 42231199 in words is "forty-two million, two hundred thirty-one thousand, one hundred ninety-nine".

Divisors: 1 2179 19381 42231199