Base | Representation |
---|---|
bin | 11011100010111… |
… | …01101010001001 |
3 | 121002210120220221 |
4 | 31301131222021 |
5 | 433123222340 |
6 | 34532350041 |
7 | 5504031322 |
oct | 1561355211 |
9 | 532716827 |
10 | 231070345 |
11 | 109484630 |
12 | 65475321 |
13 | 38b4551c |
14 | 2298d449 |
15 | 1544544a |
hex | dc5da89 |
231070345 has 8 divisors (see below), whose sum is σ = 302492160. Its totient is φ = 168051120.
The previous prime is 231070321. The next prime is 231070429. The reversal of 231070345 is 543070132.
It is a sphenic number, since it is the product of 3 distinct primes.
It is not a de Polignac number, because 231070345 - 25 = 231070313 is a prime.
It is an unprimeable number.
It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2100585 + ... + 2100694.
It is an arithmetic number, because the mean of its divisors is an integer number (37811520).
Almost surely, 2231070345 is an apocalyptic number.
It is an amenable number.
231070345 is a deficient number, since it is larger than the sum of its proper divisors (71421815).
231070345 is a wasteful number, since it uses less digits than its factorization.
231070345 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 4201295.
The product of its (nonzero) digits is 2520, while the sum is 25.
The square root of 231070345 is about 15200.9981580158. The cubic root of 231070345 is about 613.6415208080.
The spelling of 231070345 in words is "two hundred thirty-one million, seventy thousand, three hundred forty-five".
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