Base | Representation |
---|---|
bin | 11011011011101… |
… | …01101011000011 |
3 | 121001000022110211 |
4 | 31231311223003 |
5 | 432402321011 |
6 | 34500134551 |
7 | 5462663113 |
oct | 1555655303 |
9 | 531008424 |
10 | 230120131 |
11 | 10899572a |
12 | 65097457 |
13 | 388a1b77 |
14 | 227c3043 |
15 | 15308b21 |
hex | db75ac3 |
230120131 has 8 divisors (see below), whose sum is σ = 241369920. Its totient is φ = 219135168.
The previous prime is 230120123. The next prime is 230120141. The reversal of 230120131 is 131021032.
It is a sphenic number, since it is the product of 3 distinct primes.
It is a cyclic number.
It is not a de Polignac number, because 230120131 - 23 = 230120123 is a prime.
It is a super-2 number, since 2×2301201312 = 105910549382914322, which contains 22 as substring.
It is a Duffinian number.
It is not an unprimeable number, because it can be changed into a prime (230120141) by changing a digit.
It is a pernicious number, because its binary representation contains a prime number (17) of ones.
It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 64426 + ... + 67903.
It is an arithmetic number, because the mean of its divisors is an integer number (30171240).
Almost surely, 2230120131 is an apocalyptic number.
230120131 is a deficient number, since it is larger than the sum of its proper divisors (11249789).
230120131 is a wasteful number, since it uses less digits than its factorization.
230120131 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 132413.
The product of its (nonzero) digits is 36, while the sum is 13.
The square root of 230120131 is about 15169.7109728564. The cubic root of 230120131 is about 612.7992205083.
Adding to 230120131 its reverse (131021032), we get a palindrome (361141163).
Subtracting from 230120131 its reverse (131021032), we obtain a palindrome (99099099).
The spelling of 230120131 in words is "two hundred thirty million, one hundred twenty thousand, one hundred thirty-one".
• e-mail: info -at- numbersaplenty.com • Privacy notice • done in 0.072 sec. • engine limits •