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230294605 = 582156101
BaseRepresentation
bin11011011101000…
…00010001001101
3121001100011210211
431232200101031
5432423411410
634504002421
75464320562
oct1556402115
9531304724
10230294605
11108aa4822
1265160411
13389333c8
142282a869
151534068a
hexdba044d

230294605 has 8 divisors (see below), whose sum is σ = 276695064. Its totient is φ = 184008000.

The previous prime is 230294591. The next prime is 230294609. The reversal of 230294605 is 506492032.

It can be written as a sum of positive squares in 4 ways, for example, as 17455684 + 212838921 = 4178^2 + 14589^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a de Polignac number, because none of the positive numbers 2k-230294605 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 (230294609) 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, 23946 + ... + 32155.

It is an arithmetic number, because the mean of its divisors is an integer number (34586883).

Almost surely, 2230294605 is an apocalyptic number.

It is an amenable number.

230294605 is a deficient number, since it is larger than the sum of its proper divisors (46400459).

230294605 is an equidigital number, since it uses as much as digits as its factorization.

230294605 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 56927.

The product of its (nonzero) digits is 12960, while the sum is 31.

The square root of 230294605 is about 15175.4606190389. The cubic root of 230294605 is about 612.9540534369.

The spelling of 230294605 in words is "two hundred thirty million, two hundred ninety-four thousand, six hundred five".

Divisors: 1 5 821 4105 56101 280505 46058921 230294605