Base | Representation |
---|---|
bin | 11011100000101… |
… | …00010111011111 |
3 | 121002020100010100 |
4 | 31300110113133 |
5 | 433034121033 |
6 | 34522112143 |
7 | 5501341152 |
oct | 1560242737 |
9 | 532210110 |
10 | 230770143 |
11 | 10929a02a |
12 | 6534b653 |
13 | 38a6b9a6 |
14 | 22911c99 |
15 | 153d6513 |
hex | dc145df |
230770143 has 12 divisors (see below), whose sum is σ = 350878840. Its totient is φ = 145749456.
The previous prime is 230770117. The next prime is 230770171. The reversal of 230770143 is 341077032.
It is not a de Polignac number, because 230770143 - 214 = 230753759 is a prime.
It is a Duffinian number.
It is a congruent number.
It is not an unprimeable number, because it can be changed into a prime (230770193) by changing a digit.
It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 674596 + ... + 674937.
Almost surely, 2230770143 is an apocalyptic number.
230770143 is a deficient number, since it is larger than the sum of its proper divisors (120108697).
230770143 is a wasteful number, since it uses less digits than its factorization.
230770143 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 1349558 (or 1349555 counting only the distinct ones).
The product of its (nonzero) digits is 3528, while the sum is 27.
The square root of 230770143 is about 15191.1205314157. The cubic root of 230770143 is about 613.3756620191.
The spelling of 230770143 in words is "two hundred thirty million, seven hundred seventy thousand, one hundred forty-three".
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