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230030345 = 546006069
BaseRepresentation
bin11011011010111…
…11110000001001
3121000211202022102
431231133300021
5432341432340
634454203145
75462140256
oct1555376011
9530752272
10230030345
11108934226
12650534b5
133887003c
142279c42d
15152dc215
hexdb5fc09

230030345 has 4 divisors (see below), whose sum is σ = 276036420. Its totient is φ = 184024272.

The previous prime is 230030341. The next prime is 230030387. The reversal of 230030345 is 543030032.

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 115369081 + 114661264 = 10741^2 + 10708^2 .

It is a cyclic number.

It is not a de Polignac number, because 230030345 - 22 = 230030341 is a prime.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (230030341) 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, 23003030 + ... + 23003039.

It is an arithmetic number, because the mean of its divisors is an integer number (69009105).

Almost surely, 2230030345 is an apocalyptic number.

It is an amenable number.

230030345 is a deficient number, since it is larger than the sum of its proper divisors (46006075).

230030345 is an equidigital number, since it uses as much as digits as its factorization.

230030345 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 46006074.

The product of its (nonzero) digits is 1080, while the sum is 20.

The square root of 230030345 is about 15166.7513001302. The cubic root of 230030345 is about 612.7195114915.

Adding to 230030345 its reverse (543030032), we get a palindrome (773060377).

The spelling of 230030345 in words is "two hundred thirty million, thirty thousand, three hundred forty-five".

Divisors: 1 5 46006069 230030345