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230633146 = 2119396661
BaseRepresentation
bin11011011111100…
…10111010111010
3121001222101012101
431233302322322
5433020230041
634515134014
75500230562
oct1557627272
9531871171
10230633146
11109206107
12652a430a
1338a21523
14228b7da2
15153aab31
hexdbf2eba

230633146 has 8 divisors (see below), whose sum is σ = 346243284. Its totient is φ = 115218720.

The previous prime is 230633141. The next prime is 230633147. The reversal of 230633146 is 641336032.

It can be written as a sum of positive squares in 2 ways, for example, as 219484225 + 11148921 = 14815^2 + 3339^2 .

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

It is not an unprimeable number, because it can be changed into a prime (230633141) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 45945 + ... + 50716.

Almost surely, 2230633146 is an apocalyptic number.

230633146 is a deficient number, since it is larger than the sum of its proper divisors (115610138).

230633146 is a wasteful number, since it uses less digits than its factorization.

230633146 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 97856.

The product of its (nonzero) digits is 7776, while the sum is 28.

The square root of 230633146 is about 15186.6107476290. The cubic root of 230633146 is about 613.2542609021.

Adding to 230633146 its reverse (641336032), we get a palindrome (871969178).

The spelling of 230633146 in words is "two hundred thirty million, six hundred thirty-three thousand, one hundred forty-six".

Divisors: 1 2 1193 2386 96661 193322 115316573 230633146