Base | Representation |
---|---|
bin | 11100000100000000… |
… | …100000000011010100 |
3 | 2212202221200202201120 |
4 | 130010000200003110 |
5 | 443202243324340 |
6 | 21501545323540 |
7 | 2114461604133 |
oct | 340400400324 |
9 | 85687622646 |
10 | 30132011220 |
11 | 1186280a013 |
12 | 5a0b1965b0 |
13 | 2ac283614c |
14 | 165bbad91a |
15 | bb55034d0 |
hex | 7040200d4 |
30132011220 has 24 divisors (see below), whose sum is σ = 84369631584. Its totient is φ = 8035202976.
The previous prime is 30132011159. The next prime is 30132011249. The reversal of 30132011220 is 2211023103.
It is a Harshad number since it is a multiple of its sum of digits (15).
It is a self number, because there is not a number n which added to its sum of digits gives 30132011220.
It is a congruent number.
It is an unprimeable number.
It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 251100034 + ... + 251100153.
It is an arithmetic number, because the mean of its divisors is an integer number (3515401316).
Almost surely, 230132011220 is an apocalyptic number.
30132011220 is a gapful number since it is divisible by the number (30) formed by its first and last digit.
It is an amenable number.
30132011220 is an abundant number, since it is smaller than the sum of its proper divisors (54237620364).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
30132011220 is a wasteful number, since it uses less digits than its factorization.
30132011220 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 502200199 (or 502200197 counting only the distinct ones).
The product of its (nonzero) digits is 72, while the sum is 15.
Adding to 30132011220 its reverse (2211023103), we get a palindrome (32343034323).
The spelling of 30132011220 in words is "thirty billion, one hundred thirty-two million, eleven thousand, two hundred twenty".
• e-mail: info -at- numbersaplenty.com • Privacy notice • done in 0.077 sec. • engine limits •