Base | Representation |
---|---|
bin | 11100001111111100… |
… | …101000010110011111 |
3 | 2220021220121200010221 |
4 | 130033330220112133 |
5 | 444110033320411 |
6 | 21533502542211 |
7 | 2122443331150 |
oct | 341774502637 |
9 | 86256550127 |
10 | 30332323231 |
11 | 11955895431 |
12 | 5a66297967 |
13 | 2b2519c472 |
14 | 167a633927 |
15 | bc7dc0071 |
hex | 70ff2859f |
30332323231 has 4 divisors (see below), whose sum is σ = 34665512272. Its totient is φ = 25999134192.
The previous prime is 30332323223. The next prime is 30332323237. The reversal of 30332323231 is 13232323303.
It is a semiprime because it is the product of two primes.
It is a cyclic number.
It is not a de Polignac number, because 30332323231 - 23 = 30332323223 is a prime.
It is a super-2 number, since 2×303323232312 (a number of 22 digits) contains 22 as substring.
It is a Duffinian number.
It is a junction number, because it is equal to n+sod(n) for n = 30332323196 and 30332323205.
It is a congruent number.
It is not an unprimeable number, because it can be changed into a prime (30332323237) by changing a digit.
It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2166594510 + ... + 2166594523.
It is an arithmetic number, because the mean of its divisors is an integer number (8666378068).
Almost surely, 230332323231 is an apocalyptic number.
30332323231 is a deficient number, since it is larger than the sum of its proper divisors (4333189041).
30332323231 is an equidigital number, since it uses as much as digits as its factorization.
30332323231 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 4333189040.
The product of its (nonzero) digits is 5832, while the sum is 25.
Adding to 30332323231 its reverse (13232323303), we get a palindrome (43564646534).
The spelling of 30332323231 in words is "thirty billion, three hundred thirty-two million, three hundred twenty-three thousand, two hundred thirty-one".
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