Base | Representation |
---|---|
bin | 11100001000111010… |
… | …000111000110001100 |
3 | 2212222200101112000102 |
4 | 130020322013012030 |
5 | 443334320102340 |
6 | 21514043350232 |
7 | 2116510436300 |
oct | 341072070614 |
9 | 85880345012 |
10 | 30214222220 |
11 | 118a5160396 |
12 | 5a32822378 |
13 | 2b0688ba00 |
14 | 1668a8dd00 |
15 | bbc842215 |
hex | 708e8718c |
30214222220 has 108 divisors (see below), whose sum is σ = 79923824064. Its totient is φ = 9562250880.
The previous prime is 30214222151. The next prime is 30214222231. The reversal of 30214222220 is 2222241203.
It is a Harshad number since it is a multiple of its sum of digits (20).
It is a junction number, because it is equal to n+sod(n) for n = 30214222192 and 30214222201.
It is an unprimeable number.
It is a polite number, since it can be written in 35 ways as a sum of consecutive naturals, for example, 74405 + ... + 256835.
It is an arithmetic number, because the mean of its divisors is an integer number (740035408).
Almost surely, 230214222220 is an apocalyptic number.
It is an amenable number.
It is a practical number, because each smaller number is the sum of distinct divisors of 30214222220, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (39961912032).
30214222220 is an abundant number, since it is smaller than the sum of its proper divisors (49709601844).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
30214222220 is a wasteful number, since it uses less digits than its factorization.
30214222220 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 182480 (or 182458 counting only the distinct ones).
The product of its (nonzero) digits is 768, while the sum is 20.
Adding to 30214222220 its reverse (2222241203), we get a palindrome (32436463423).
The spelling of 30214222220 in words is "thirty billion, two hundred fourteen million, two hundred twenty-two thousand, two hundred twenty".
• e-mail: info -at- numbersaplenty.com • Privacy notice • done in 0.076 sec. • engine limits •