Base | Representation |
---|---|
bin | 11011011010110… |
… | …11010110000011 |
3 | 121000210211112202 |
4 | 31231123112003 |
5 | 432340343131 |
6 | 34453543415 |
7 | 5462033525 |
oct | 1555332603 |
9 | 530724482 |
10 | 230012291 |
11 | 108921703 |
12 | 65044b6b |
13 | 38864a62 |
14 | 22795a15 |
15 | 152d6bcb |
hex | db5b583 |
230012291 has 4 divisors (see below), whose sum is σ = 232047912. Its totient is φ = 227976672.
The previous prime is 230012243. The next prime is 230012327. The reversal of 230012291 is 192210032.
It is a semiprime because it is the product of two primes.
It is a cyclic number.
It is not a de Polignac number, because 230012291 - 226 = 162903427 is a prime.
It is a super-2 number, since 2×2300122912 = 105811308022137362, which contains 22 as substring.
It is a Duffinian number.
It is not an unprimeable number, because it can be changed into a prime (230012221) 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, 1017641 + ... + 1017866.
It is an arithmetic number, because the mean of its divisors is an integer number (58011978).
Almost surely, 2230012291 is an apocalyptic number.
230012291 is a deficient number, since it is larger than the sum of its proper divisors (2035621).
230012291 is a wasteful number, since it uses less digits than its factorization.
230012291 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 2035620.
The product of its (nonzero) digits is 216, while the sum is 20.
The square root of 230012291 is about 15166.1561049595. The cubic root of 230012291 is about 612.7034812478.
The spelling of 230012291 in words is "two hundred thirty million, twelve thousand, two hundred ninety-one".
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