Base | Representation |
---|---|
bin | 10001101000110001011… |
… | …011010001010111110101 |
3 | 11021212102001122211121101 |
4 | 101220301123101113311 |
5 | 124324144030310401 |
6 | 2324442324450101 |
7 | 153364511050522 |
oct | 21506133212765 |
9 | 4255361584541 |
10 | 1212010010101 |
11 | 428013065480 |
12 | 176a8b849931 |
13 | 8a3a4845867 |
14 | 429395d0149 |
15 | 217d9287101 |
hex | 11a316d15f5 |
1212010010101 has 8 divisors (see below), whose sum is σ = 1322387174304. Its totient is φ = 1101665251920.
The previous prime is 1212010010087. The next prime is 1212010010111. The reversal of 1212010010101 is 1010100102121.
It is a sphenic number, since it is the product of 3 distinct primes.
It is a cyclic number.
It is a de Polignac number, because none of the positive numbers 2k-1212010010101 is a prime.
It is a super-2 number, since 2×12120100101012 (a number of 25 digits) contains 22 as substring.
It is a Duffinian number.
It is a congruent number.
It is not an unprimeable number, because it can be changed into a prime (1212010010111) 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, 8023266 + ... + 8172931.
It is an arithmetic number, because the mean of its divisors is an integer number (165298396788).
Almost surely, 21212010010101 is an apocalyptic number.
1212010010101 is a gapful number since it is divisible by the number (11) formed by its first and last digit.
It is an amenable number.
1212010010101 is a deficient number, since it is larger than the sum of its proper divisors (110377164203).
1212010010101 is a wasteful number, since it uses less digits than its factorization.
1212010010101 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 16203011.
The product of its (nonzero) digits is 4, while the sum is 10.
Adding to 1212010010101 its reverse (1010100102121), we get a palindrome (2222110112222).
The spelling of 1212010010101 in words is "one trillion, two hundred twelve billion, ten million, ten thousand, one hundred one".
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