Base | Representation |
---|---|
bin | 10001101001101110001… |
… | …110010000110010101111 |
3 | 11021222001010222012110120 |
4 | 101221232032100302233 |
5 | 124333241140310111 |
6 | 2325131442540023 |
7 | 153432004650330 |
oct | 21515616206257 |
9 | 4258033865416 |
10 | 1213030010031 |
11 | 4284968a9524 |
12 | 177115367613 |
13 | 8a507c66108 |
14 | 429d4c66287 |
15 | 21848ab9406 |
hex | 11a6e390caf |
1213030010031 has 16 divisors (see below), whose sum is σ = 1848452880384. Its totient is φ = 693150181344.
The previous prime is 1213030010029. The next prime is 1213030010053. The reversal of 1213030010031 is 1300100303121.
It is not a de Polignac number, because 1213030010031 - 21 = 1213030010029 is a prime.
It is a super-2 number, since 2×12130300100312 (a number of 25 digits) contains 22 as substring.
It is a congruent number.
It is not an unprimeable number, because it can be changed into a prime (1213030010021) 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, 1267285 + ... + 2008001.
It is an arithmetic number, because the mean of its divisors is an integer number (115528305024).
Almost surely, 21213030010031 is an apocalyptic number.
1213030010031 is a deficient number, since it is larger than the sum of its proper divisors (635422870353).
1213030010031 is an equidigital number, since it uses as much as digits as its factorization.
1213030010031 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 818710.
The product of its (nonzero) digits is 54, while the sum is 15.
Adding to 1213030010031 its reverse (1300100303121), we get a palindrome (2513130313152).
The spelling of 1213030010031 in words is "one trillion, two hundred thirteen billion, thirty million, ten thousand, thirty-one".
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