Base | Representation |
---|---|
bin | 101110100011… |
… | …000011110110 |
3 | 211221221022110 |
4 | 232203003312 |
5 | 11110432410 |
6 | 1113311450 |
7 | 205501005 |
oct | 56430366 |
9 | 24857273 |
10 | 12202230 |
11 | 6984797 |
12 | 4105586 |
13 | 26b3071 |
14 | 1898c3c |
15 | 1110720 |
hex | ba30f6 |
12202230 has 32 divisors (see below), whose sum is σ = 30079584. Its totient is φ = 3165696.
The previous prime is 12202219. The next prime is 12202249. The reversal of 12202230 is 3220221.
It is a congruent number.
It is an unprimeable number.
It is a pernicious number, because its binary representation contains a prime number (13) of ones.
It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 4387 + ... + 6606.
It is an arithmetic number, because the mean of its divisors is an integer number (939987).
Almost surely, 212202230 is an apocalyptic number.
12202230 is a gapful number since it is divisible by the number (10) formed by its first and last digit.
12202230 is an abundant number, since it is smaller than the sum of its proper divisors (17877354).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
12202230 is a wasteful number, since it uses less digits than its factorization.
12202230 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 11040.
The product of its (nonzero) digits is 48, while the sum is 12.
The square root of 12202230 is about 3493.1690482998. The cubic root of 12202230 is about 230.2217772611.
Adding to 12202230 its reverse (3220221), we get a palindrome (15422451).
Subtracting from 12202230 its reverse (3220221), we obtain a square (8982009 = 29972).
The spelling of 12202230 in words is "twelve million, two hundred two thousand, two hundred thirty".
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