Base | Representation |
---|---|
bin | 11011100010100… |
… | …10100111101010 |
3 | 121002201021220022 |
4 | 31301102213222 |
5 | 433120301010 |
6 | 34531400442 |
7 | 5503452440 |
oct | 1561224752 |
9 | 532637808 |
10 | 231025130 |
11 | 109453666 |
12 | 65453122 |
13 | 38b2aa7b |
14 | 2297ab90 |
15 | 15436d55 |
hex | dc529ea |
231025130 has 16 divisors (see below), whose sum is σ = 475251840. Its totient is φ = 79208592.
The previous prime is 231025129. The next prime is 231025229. The reversal of 231025130 is 31520132.
It is a super-2 number, since 2×2310251302 = 106745221383033800, which contains 22 as substring.
It is a junction number, because it is equal to n+sod(n) for n = 231025099 and 231025108.
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, 1650110 + ... + 1650249.
It is an arithmetic number, because the mean of its divisors is an integer number (29703240).
Almost surely, 2231025130 is an apocalyptic number.
231025130 is an abundant number, since it is smaller than the sum of its proper divisors (244226710).
231025130 is a wasteful number, since it uses less digits than its factorization.
231025130 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 3300373.
The product of its (nonzero) digits is 180, while the sum is 17.
The square root of 231025130 is about 15199.5108473924. The cubic root of 231025130 is about 613.6014931542.
Adding to 231025130 its reverse (31520132), we get a palindrome (262545262).
The spelling of 231025130 in words is "two hundred thirty-one million, twenty-five thousand, one hundred thirty".
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