Base | Representation |
---|---|
bin | 11100100010100100… |
… | …101011001001011011 |
3 | 2221002200121122212020 |
4 | 130202210223021123 |
5 | 1000230032412311 |
6 | 22024504345523 |
7 | 2133256406232 |
oct | 344244531133 |
9 | 87080548766 |
10 | 30644810331 |
11 | 11aa6218633 |
12 | 5b32a752a3 |
13 | 2b74b4cb85 |
14 | 16a9d37b19 |
15 | be5548c06 |
hex | 72292b25b |
30644810331 has 8 divisors (see below), whose sum is σ = 40883803200. Its totient is φ = 20417845512.
The previous prime is 30644810321. The next prime is 30644810333. The reversal of 30644810331 is 13301844603.
It is a sphenic number, since it is the product of 3 distinct primes.
It is not a de Polignac number, because 30644810331 - 214 = 30644793947 is a prime.
It is a super-2 number, since 2×306448103312 (a number of 22 digits) contains 22 as substring.
It is a junction number, because it is equal to n+sod(n) for n = 30644810292 and 30644810301.
It is not an unprimeable number, because it can be changed into a prime (30644810333) 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, 3001065 + ... + 3011258.
It is an arithmetic number, because the mean of its divisors is an integer number (5110475400).
Almost surely, 230644810331 is an apocalyptic number.
30644810331 is a deficient number, since it is larger than the sum of its proper divisors (10238992869).
30644810331 is a wasteful number, since it uses less digits than its factorization.
30644810331 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 6014025.
The product of its (nonzero) digits is 20736, while the sum is 33.
The spelling of 30644810331 in words is "thirty billion, six hundred forty-four million, eight hundred ten thousand, three hundred thirty-one".
• e-mail: info -at- numbersaplenty.com • Privacy notice • done in 0.075 sec. • engine limits •