Base | Representation |
---|---|
bin | 11011111100110111… |
… | …111010111000110010 |
3 | 2212110121110220001200 |
4 | 123330313322320302 |
5 | 442431123240310 |
6 | 21442032112030 |
7 | 2111506344045 |
oct | 337467727062 |
9 | 85417426050 |
10 | 30012321330 |
11 | 1180119a252 |
12 | 5997095616 |
13 | 2aa3aba424 |
14 | 1649d34c5c |
15 | ba9c5e9c0 |
hex | 6fcdfae32 |
30012321330 has 48 divisors (see below), whose sum is σ = 78463194264. Its totient is φ = 7959064320.
The previous prime is 30012321301. The next prime is 30012321331. The reversal of 30012321330 is 3312321003.
30012321330 is a `hidden beast` number, since 3 + 0 + 0 + 12 + 321 + 330 = 666.
It can be written as a sum of positive squares in 4 ways, for example, as 19504636281 + 10507685049 = 139659^2 + 102507^2 .
It is a Harshad number since it is a multiple of its sum of digits (18).
It is not an unprimeable number, because it can be changed into a prime (30012321331) by changing a digit.
It is a pernicious number, because its binary representation contains a prime number (23) of ones.
It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 904899 + ... + 937478.
Almost surely, 230012321330 is an apocalyptic number.
30012321330 is a gapful number since it is divisible by the number (30) formed by its first and last digit.
30012321330 is an abundant number, since it is smaller than the sum of its proper divisors (48450872934).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
30012321330 is a wasteful number, since it uses less digits than its factorization.
30012321330 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 1842571 (or 1842568 counting only the distinct ones).
The product of its (nonzero) digits is 324, while the sum is 18.
Adding to 30012321330 its reverse (3312321003), we get a palindrome (33324642333).
The spelling of 30012321330 in words is "thirty billion, twelve million, three hundred twenty-one thousand, three hundred thirty".
• e-mail: info -at- numbersaplenty.com • Privacy notice • done in 0.072 sec. • engine limits •