Base | Representation |
---|---|
bin | 10110101110101101… |
… | …10111111010010100 |
3 | 1011111110011021012000 |
4 | 23113112313322110 |
5 | 144442434012322 |
6 | 5334521155300 |
7 | 611255030250 |
oct | 132726677224 |
9 | 34443137160 |
10 | 12203032212 |
11 | 51a2325798 |
12 | 244692bb30 |
13 | 11c6241027 |
14 | 83a98d260 |
15 | 4b64c83ac |
hex | 2d75b7e94 |
12203032212 has 96 divisors (see below), whose sum is σ = 37039107840. Its totient is φ = 3401533440.
The previous prime is 12203032187. The next prime is 12203032217. The reversal of 12203032212 is 21223030221.
It is a super-2 number, since 2×122030322122 (a number of 21 digits) contains 22 as substring.
It is a Harshad number since it is a multiple of its sum of digits (18).
It is a congruent number.
It is not an unprimeable number, because it can be changed into a prime (12203032217) by changing a digit.
It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 165853 + ... + 227844.
It is an arithmetic number, because the mean of its divisors is an integer number (385824040).
Almost surely, 212203032212 is an apocalyptic number.
12203032212 is a gapful number since it is divisible by the number (12) formed by its first and last digit.
It is an amenable number.
12203032212 is an abundant number, since it is smaller than the sum of its proper divisors (24836075628).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
12203032212 is a wasteful number, since it uses less digits than its factorization.
12203032212 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 393758 (or 393750 counting only the distinct ones).
The product of its (nonzero) digits is 288, while the sum is 18.
Adding to 12203032212 its reverse (21223030221), we get a palindrome (33426062433).
The spelling of 12203032212 in words is "twelve billion, two hundred three million, thirty-two thousand, two hundred twelve".
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