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230616146 = 2115308073
BaseRepresentation
bin11011011111011…
…10110001010010
3121001221111212202
431233232301102
5433014204041
634514523202
75500130165
oct1557566122
9531844782
10230616146
111091a4362
1265296502
1338a16877
14228b1adc
15153a5a9b
hexdbeec52

230616146 has 4 divisors (see below), whose sum is σ = 345924222. Its totient is φ = 115308072.

The previous prime is 230616143. The next prime is 230616157. The reversal of 230616146 is 641616032.

It is a happy number.

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

It can be written as a sum of positive squares in only one way, i.e., 125328025 + 105288121 = 11195^2 + 10261^2 .

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (230616143) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 57654035 + ... + 57654038.

Almost surely, 2230616146 is an apocalyptic number.

230616146 is a deficient number, since it is larger than the sum of its proper divisors (115308076).

230616146 is a wasteful number, since it uses less digits than its factorization.

230616146 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 115308075.

The product of its (nonzero) digits is 5184, while the sum is 29.

The square root of 230616146 is about 15186.0510337612. The cubic root of 230616146 is about 613.2391928474.

The spelling of 230616146 in words is "two hundred thirty million, six hundred sixteen thousand, one hundred forty-six".

Divisors: 1 2 115308073 230616146