Base | Representation |
---|---|
bin | 11101000101101000… |
… | …011100011100001110 |
3 | 2222121200101212002100 |
4 | 131011220130130032 |
5 | 1002431122014410 |
6 | 22203115335530 |
7 | 2153661062424 |
oct | 350550343416 |
9 | 88550355070 |
10 | 31233001230 |
11 | 12278240112 |
12 | 6077a515a6 |
13 | 2c39972622 |
14 | 17240c9114 |
15 | c2bed28c0 |
hex | 745a1c70e |
31233001230 has 96 divisors (see below), whose sum is σ = 87092871840. Its totient is φ = 7741543680.
The previous prime is 31233001181. The next prime is 31233001237. The reversal of 31233001230 is 3210033213.
31233001230 is a `hidden beast` number, since 312 + 330 + 0 + 1 + 23 + 0 = 666.
It is a Harshad number since it is a multiple of its sum of digits (18).
It is a congruent number.
It is not an unprimeable number, because it can be changed into a prime (31233001237) 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 47 ways as a sum of consecutive naturals, for example, 81681 + ... + 262940.
It is an arithmetic number, because the mean of its divisors is an integer number (907217415).
Almost surely, 231233001230 is an apocalyptic number.
31233001230 is a gapful number since it is divisible by the number (30) formed by its first and last digit.
31233001230 is an abundant number, since it is smaller than the sum of its proper divisors (55859870610).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
31233001230 is a wasteful number, since it uses less digits than its factorization.
31233001230 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 344706 (or 344703 counting only the distinct ones).
The product of its (nonzero) digits is 324, while the sum is 18.
Adding to 31233001230 its reverse (3210033213), we get a palindrome (34443034443).
The spelling of 31233001230 in words is "thirty-one billion, two hundred thirty-three million, one thousand, two hundred thirty".
• e-mail: info -at- numbersaplenty.com • Privacy notice • done in 0.070 sec. • engine limits •