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230893613 = 2273101581
BaseRepresentation
bin11011100001100…
…10100000101101
3121002110121111022
431300302200231
5433102043423
634524503525
75502364136
oct1560624055
9532417438
10230893613
11109373875
12653aaba5
1338ab2c52
1422944c8d
151540cdc8
hexdc3282d

230893613 has 4 divisors (see below), whose sum is σ = 230997468. Its totient is φ = 230789760.

The previous prime is 230893589. The next prime is 230893631. The reversal of 230893613 is 316398032.

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

It can be written as a sum of positive squares in 2 ways, for example, as 159693769 + 71199844 = 12637^2 + 8438^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2k-230893613 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 (230890613) 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, 48518 + ... + 53063.

It is an arithmetic number, because the mean of its divisors is an integer number (57749367).

Almost surely, 2230893613 is an apocalyptic number.

It is an amenable number.

230893613 is a deficient number, since it is larger than the sum of its proper divisors (103855).

230893613 is a wasteful number, since it uses less digits than its factorization.

230893613 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 103854.

The product of its (nonzero) digits is 23328, while the sum is 35.

The square root of 230893613 is about 15195.1838751626. The cubic root of 230893613 is about 613.4850349061.

The spelling of 230893613 in words is "two hundred thirty million, eight hundred ninety-three thousand, six hundred thirteen".

Divisors: 1 2273 101581 230893613