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230318789 = 793329033
BaseRepresentation
bin11011011101001…
…10001011000101
3121001101101222112
431232212023011
5432430200124
634504310405
75464451231
oct1556461305
9531341875
10230318789
11109010a08
1265172405
133894140c
14228355c1
151534790e
hexdba62c5

230318789 has 4 divisors (see below), whose sum is σ = 230355756. Its totient is φ = 230281824.

The previous prime is 230318773. The next prime is 230318791. The reversal of 230318789 is 987813032.

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 73017025 + 157301764 = 8545^2 + 12542^2 .

It is a cyclic number.

It is not a de Polignac number, because 230318789 - 24 = 230318773 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 (230318729) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 6584 + ... + 22449.

It is an arithmetic number, because the mean of its divisors is an integer number (57588939).

Almost surely, 2230318789 is an apocalyptic number.

It is an amenable number.

230318789 is a deficient number, since it is larger than the sum of its proper divisors (36967).

230318789 is an equidigital number, since it uses as much as digits as its factorization.

230318789 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 36966.

The product of its (nonzero) digits is 72576, while the sum is 41.

The square root of 230318789 is about 15176.2574108375. The cubic root of 230318789 is about 612.9755087984.

It can be divided in two parts, 2 and 30318789, that multiplied together give a triangular number (60637578 = T11012).

The spelling of 230318789 in words is "two hundred thirty million, three hundred eighteen thousand, seven hundred eighty-nine".

Divisors: 1 7933 29033 230318789