Base | Representation |
---|---|
bin | 100100001001110… |
… | …0111011111001110 |
3 | 10010112122222010211 |
4 | 1020103213133032 |
5 | 4441023231110 |
6 | 320212553034 |
7 | 42030124420 |
oct | 11023473716 |
9 | 3115588124 |
10 | 1213102030 |
11 | 572845568 |
12 | 29a32277a |
13 | 164430c6a |
14 | b7180810 |
15 | 7177798a |
hex | 484e77ce |
1213102030 has 16 divisors (see below), whose sum is σ = 2495524320. Its totient is φ = 415920672.
The previous prime is 1213102027. The next prime is 1213102039. The reversal of 1213102030 is 302013121.
It is a self number, because there is not a number n which added to its sum of digits gives 1213102030.
It is a congruent number.
It is not an unprimeable number, because it can be changed into a prime (1213102039) by changing a digit.
It is a pernicious number, because its binary representation contains a prime number (17) of ones.
It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 8664945 + ... + 8665084.
It is an arithmetic number, because the mean of its divisors is an integer number (155970270).
Almost surely, 21213102030 is an apocalyptic number.
1213102030 is a gapful number since it is divisible by the number (10) formed by its first and last digit.
1213102030 is an abundant number, since it is smaller than the sum of its proper divisors (1282422290).
1213102030 is a wasteful number, since it uses less digits than its factorization.
1213102030 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 17330043.
The product of its (nonzero) digits is 36, while the sum is 13.
The square root of 1213102030 is about 34829.6142671721. The cubic root of 1213102030 is about 1066.5120740586.
Adding to 1213102030 its reverse (302013121), we get a palindrome (1515115151).
The spelling of 1213102030 in words is "one billion, two hundred thirteen million, one hundred two thousand, thirty".
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