Base | Representation |
---|---|
bin | 11011011011000… |
… | …01110100000001 |
3 | 121000212011220000 |
4 | 31231201310001 |
5 | 432342220120 |
6 | 34454310213 |
7 | 5462204004 |
oct | 1555416401 |
9 | 530764800 |
10 | 230038785 |
11 | 10893a5a9 |
12 | 65058369 |
13 | 38873b32 |
14 | 227a153b |
15 | 152de990 |
hex | db61d01 |
230038785 has 20 divisors (see below), whose sum is σ = 412366548. Its totient is φ = 122687136.
The previous prime is 230038771. The next prime is 230038789. The reversal of 230038785 is 587830032.
It can be written as a sum of positive squares in 2 ways, for example, as 136258929 + 93779856 = 11673^2 + 9684^2 .
It is not a de Polignac number, because 230038785 - 24 = 230038769 is a prime.
It is not an unprimeable number, because it can be changed into a prime (230038789) 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 19 ways as a sum of consecutive naturals, for example, 283594 + ... + 284403.
Almost surely, 2230038785 is an apocalyptic number.
It is an amenable number.
230038785 is a deficient number, since it is larger than the sum of its proper divisors (182327763).
230038785 is an equidigital number, since it uses as much as digits as its factorization.
230038785 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 568014 (or 568005 counting only the distinct ones).
The product of its (nonzero) digits is 40320, while the sum is 36.
The square root of 230038785 is about 15167.0295377836. The cubic root of 230038785 is about 612.7270051252.
The spelling of 230038785 in words is "two hundred thirty million, thirty-eight thousand, seven hundred eighty-five".
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