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230010145 = 546002029
BaseRepresentation
bin11011011010110…
…10110100100001
3121000210201121021
431231122310201
5432340311040
634453525441
75462024341
oct1555326441
9530721537
10230010145
11108920032
1265043881
1338863aa1
1422794d21
15152d624a
hexdb5ad21

230010145 has 4 divisors (see below), whose sum is σ = 276012180. Its totient is φ = 184008112.

The previous prime is 230010103. The next prime is 230010161. The reversal of 230010145 is 541010032.

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 90935296 + 139074849 = 9536^2 + 11793^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2k-230010145 is a prime.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 23001010 + ... + 23001019.

It is an arithmetic number, because the mean of its divisors is an integer number (69003045).

Almost surely, 2230010145 is an apocalyptic number.

It is an amenable number.

230010145 is a deficient number, since it is larger than the sum of its proper divisors (46002035).

230010145 is an equidigital number, since it uses as much as digits as its factorization.

230010145 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 46002034.

The product of its (nonzero) digits is 120, while the sum is 16.

The square root of 230010145 is about 15166.0853551600. The cubic root of 230010145 is about 612.7015757471.

Adding to 230010145 its reverse (541010032), we get a palindrome (771020177).

The spelling of 230010145 in words is "two hundred thirty million, ten thousand, one hundred forty-five".

Divisors: 1 5 46002029 230010145