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230890243 = 1720396661
BaseRepresentation
bin11011100001100…
…01101100000011
3121002110102212111
431300301230003
5433101441433
634524440151
75502351253
oct1560615403
9532412774
10230890243
11109371291
12653a9057
1338ab155c
1422943963
151540bdcd
hexdc31b03

230890243 has 8 divisors (see below), whose sum is σ = 244628640. Its totient is φ = 217169280.

The previous prime is 230890193. The next prime is 230890267. The reversal of 230890243 is 342098032.

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 230890243 - 217 = 230759171 is a prime.

It is not an unprimeable number, because it can be changed into a prime (230800243) 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 7 ways as a sum of consecutive naturals, for example, 31333 + ... + 37993.

It is an arithmetic number, because the mean of its divisors is an integer number (30578580).

Almost surely, 2230890243 is an apocalyptic number.

230890243 is a deficient number, since it is larger than the sum of its proper divisors (13738397).

230890243 is a wasteful number, since it uses less digits than its factorization.

230890243 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8717.

The product of its (nonzero) digits is 10368, while the sum is 31.

The square root of 230890243 is about 15195.0729843591. The cubic root of 230890243 is about 613.4820501914.

The spelling of 230890243 in words is "two hundred thirty million, eight hundred ninety thousand, two hundred forty-three".

Divisors: 1 17 2039 6661 34663 113237 13581779 230890243