Base | Representation |
---|---|
bin | 100100011011001… |
… | …0100101011011110 |
3 | 10011011210012020210 |
4 | 1020312110223132 |
5 | 10000340400110 |
6 | 321135553250 |
7 | 42200346252 |
oct | 11066245336 |
9 | 3134705223 |
10 | 1222200030 |
11 | 577999a77 |
12 | 2a138b826 |
13 | 1662980ac |
14 | b846c262 |
15 | 72473520 |
hex | 48d94ade |
1222200030 has 32 divisors (see below), whose sum is σ = 2934199584. Its totient is φ = 325817856.
The previous prime is 1222200029. The next prime is 1222200043. The reversal of 1222200030 is 300022221.
It is a junction number, because it is equal to n+sod(n) for n = 1222199979 and 1222200015.
It is a congruent number.
It is an unprimeable number.
It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 183234 + ... + 189786.
It is an arithmetic number, because the mean of its divisors is an integer number (91693737).
Almost surely, 21222200030 is an apocalyptic number.
1222200030 is a gapful number since it is divisible by the number (10) formed by its first and last digit.
1222200030 is an abundant number, since it is smaller than the sum of its proper divisors (1711999554).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
1222200030 is a wasteful number, since it uses less digits than its factorization.
1222200030 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 12780.
The product of its (nonzero) digits is 48, while the sum is 12.
The square root of 1222200030 is about 34959.9775457594. The cubic root of 1222200030 is about 1069.1716388399.
Adding to 1222200030 its reverse (300022221), we get a palindrome (1522222251).
The spelling of 1222200030 in words is "one billion, two hundred twenty-two million, two hundred thousand, thirty".
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