Base | Representation |
---|---|
bin | 111011001110… |
… | …1100110010110 |
3 | 2011102201101200 |
4 | 1312131212112 |
5 | 30422213410 |
6 | 3025333330 |
7 | 524646054 |
oct | 166354626 |
9 | 64381350 |
10 | 31054230 |
11 | 16590559 |
12 | a497246 |
13 | 6583aac |
14 | 41a51d4 |
15 | 2ad63c0 |
hex | 1d9d996 |
31054230 has 24 divisors (see below), whose sum is σ = 80741232. Its totient is φ = 8281104.
The previous prime is 31054181. The next prime is 31054241. The reversal of 31054230 is 3245013.
It is a Harshad number since it is a multiple of its sum of digits (18).
It is a congruent number.
It is an unprimeable number.
It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 172434 + ... + 172613.
It is an arithmetic number, because the mean of its divisors is an integer number (3364218).
Almost surely, 231054230 is an apocalyptic number.
31054230 is a gapful number since it is divisible by the number (30) formed by its first and last digit.
31054230 is an abundant number, since it is smaller than the sum of its proper divisors (49687002).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
31054230 is a wasteful number, since it uses less digits than its factorization.
31054230 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 345060 (or 345057 counting only the distinct ones).
The product of its (nonzero) digits is 360, while the sum is 18.
The square root of 31054230 is about 5572.6322326168. The cubic root of 31054230 is about 314.3211381756.
Adding to 31054230 its reverse (3245013), we get a palindrome (34299243).
The spelling of 31054230 in words is "thirty-one million, fifty-four thousand, two hundred thirty".
• e-mail: info -at- numbersaplenty.com • Privacy notice • done in 0.095 sec. • engine limits •