Base | Representation |
---|---|
bin | 100100001000101… |
… | …0101000011010110 |
3 | 10010111112111101000 |
4 | 1020101111003112 |
5 | 4440400032410 |
6 | 320152044130 |
7 | 42022045632 |
oct | 11021250326 |
9 | 3114474330 |
10 | 1212502230 |
11 | 572475965 |
12 | 29a093646 |
13 | 164280c54 |
14 | b7065dc2 |
15 | 716a9dc0 |
hex | 484550d6 |
1212502230 has 32 divisors (see below), whose sum is σ = 3233340000. Its totient is φ = 323333856.
The previous prime is 1212502223. The next prime is 1212502243. The reversal of 1212502230 is 322052121.
It is a Harshad number since it is a multiple of its sum of digits (18).
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, 2245105 + ... + 2245644.
It is an arithmetic number, because the mean of its divisors is an integer number (101041875).
Almost surely, 21212502230 is an apocalyptic number.
1212502230 is a gapful number since it is divisible by the number (10) formed by its first and last digit.
1212502230 is an abundant number, since it is smaller than the sum of its proper divisors (2020837770).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
1212502230 is a wasteful number, since it uses less digits than its factorization.
1212502230 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 4490765 (or 4490759 counting only the distinct ones).
The product of its (nonzero) digits is 240, while the sum is 18.
The square root of 1212502230 is about 34821.0027138794. The cubic root of 1212502230 is about 1066.3362714786.
Adding to 1212502230 its reverse (322052121), we get a palindrome (1534554351).
The spelling of 1212502230 in words is "one billion, two hundred twelve million, five hundred two thousand, two hundred thirty".
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