Base | Representation |
---|---|
bin | 11100001001011000… |
… | …111110001100010010 |
3 | 2220000020121112101200 |
4 | 130021120332030102 |
5 | 443343402442320 |
6 | 21514533012030 |
7 | 2116636262256 |
oct | 341130761422 |
9 | 86006545350 |
10 | 30222312210 |
11 | 118a9786532 |
12 | 5a35484016 |
13 | 2b0846209c |
14 | 1669b98266 |
15 | bbd3de290 |
hex | 70963e312 |
30222312210 has 48 divisors (see below), whose sum is σ = 80405417664. Its totient is φ = 7871857056.
The previous prime is 30222312181. The next prime is 30222312217. The reversal of 30222312210 is 1221322203.
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 (30222312217) by changing a digit.
It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 3900822 + ... + 3908561.
It is an arithmetic number, because the mean of its divisors is an integer number (1675112868).
Almost surely, 230222312210 is an apocalyptic number.
30222312210 is a gapful number since it is divisible by the number (30) formed by its first and last digit.
30222312210 is an abundant number, since it is smaller than the sum of its proper divisors (50183105454).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
30222312210 is a wasteful number, since it uses less digits than its factorization.
30222312210 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 7809439 (or 7809436 counting only the distinct ones).
The product of its (nonzero) digits is 288, while the sum is 18.
Adding to 30222312210 its reverse (1221322203), we get a palindrome (31443634413).
The spelling of 30222312210 in words is "thirty billion, two hundred twenty-two million, three hundred twelve thousand, two hundred ten".
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