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230213639 = 2271014157
BaseRepresentation
bin11011011100011…
…00100000000111
3121001012001202002
431232030200013
5432413314024
634502135515
75463532535
oct1556144007
9531161662
10230213639
11108a49a07
126512159b
13389055b6
1422809155
15153266ae
hexdb8c807

230213639 has 4 divisors (see below), whose sum is σ = 231228024. Its totient is φ = 229199256.

The previous prime is 230213623. The next prime is 230213713. The reversal of 230213639 is 936312032.

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 230213639 - 24 = 230213623 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (230210639) 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, 506852 + ... + 507305.

It is an arithmetic number, because the mean of its divisors is an integer number (57807006).

Almost surely, 2230213639 is an apocalyptic number.

230213639 is a deficient number, since it is larger than the sum of its proper divisors (1014385).

230213639 is a wasteful number, since it uses less digits than its factorization.

230213639 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1014384.

The product of its (nonzero) digits is 5832, while the sum is 29.

The square root of 230213639 is about 15172.7927225017. The cubic root of 230213639 is about 612.8822117553.

The spelling of 230213639 in words is "two hundred thirty million, two hundred thirteen thousand, six hundred thirty-nine".

Divisors: 1 227 1014157 230213639