Base | Representation |
---|---|
bin | 100100001000010… |
… | …0111011001011110 |
3 | 10010111011222212002 |
4 | 1020100213121132 |
5 | 4440323041410 |
6 | 320144042302 |
7 | 42020336510 |
oct | 11020473136 |
9 | 3114158762 |
10 | 1212315230 |
11 | 572358415 |
12 | 29a003392 |
13 | 164216ab9 |
14 | b7017bb0 |
15 | 7166e7a5 |
hex | 4842765e |
1212315230 has 32 divisors (see below), whose sum is σ = 2500182720. Its totient is φ = 414604800.
The previous prime is 1212315229. The next prime is 1212315239. The reversal of 1212315230 is 325132121.
It is a congruent number.
It is not an unprimeable number, because it can be changed into a prime (1212315239) by changing a digit.
It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 6476 + ... + 49664.
It is an arithmetic number, because the mean of its divisors is an integer number (78130710).
Almost surely, 21212315230 is an apocalyptic number.
1212315230 is a gapful number since it is divisible by the number (10) formed by its first and last digit.
1212315230 is an abundant number, since it is smaller than the sum of its proper divisors (1287867490).
1212315230 is a wasteful number, since it uses less digits than its factorization.
1212315230 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 43604.
The product of its (nonzero) digits is 360, while the sum is 20.
The square root of 1212315230 is about 34818.3174492967. The cubic root of 1212315230 is about 1066.2814495492.
Adding to 1212315230 its reverse (325132121), we get a palindrome (1537447351).
The spelling of 1212315230 in words is "one billion, two hundred twelve million, three hundred fifteen thousand, two hundred thirty".
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