Base | Representation |
---|---|
bin | 100100000100010… |
… | …0101011110100100 |
3 | 10010100020001022110 |
4 | 1020020211132210 |
5 | 4434303211322 |
6 | 320031001020 |
7 | 41663421441 |
oct | 11010453644 |
9 | 3110201273 |
10 | 1210210212 |
11 | 57114a932 |
12 | 299369170 |
13 | 16395a923 |
14 | b6a2a9c8 |
15 | 713a5c0c |
hex | 482257a4 |
1210210212 has 24 divisors (see below), whose sum is σ = 2989931616. Its totient is φ = 379673728.
The previous prime is 1210210207. The next prime is 1210210217. The reversal of 1210210212 is 2120120121.
It is an interprime number because it is at equal distance from previous prime (1210210207) and next prime (1210210217).
It is a Harshad number since it is a multiple of its sum of digits (12).
It is not an unprimeable number, because it can be changed into a prime (1210210217) by changing a digit.
It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2965998 + ... + 2966405.
It is an arithmetic number, because the mean of its divisors is an integer number (124580484).
Almost surely, 21210210212 is an apocalyptic number.
1210210212 is a gapful number since it is divisible by the number (12) formed by its first and last digit.
It is an amenable number.
1210210212 is an abundant number, since it is smaller than the sum of its proper divisors (1779721404).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
1210210212 is a wasteful number, since it uses less digits than its factorization.
1210210212 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 5932427 (or 5932425 counting only the distinct ones).
The product of its (nonzero) digits is 16, while the sum is 12.
The square root of 1210210212 is about 34788.0757156817. The cubic root of 1210210212 is about 1065.6639418373.
Adding to 1210210212 its reverse (2120120121), we get a palindrome (3330330333).
Subtracting 1210210212 from its reverse (2120120121), we obtain a palindrome (909909909).
The spelling of 1210210212 in words is "one billion, two hundred ten million, two hundred ten thousand, two hundred twelve".
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