Base | Representation |
---|---|
bin | 10110110100010111… |
… | …01001100011000101 |
3 | 1011121202022212222210 |
4 | 23122023221203011 |
5 | 200042101441240 |
6 | 5343333014033 |
7 | 612401602263 |
oct | 133213514305 |
9 | 34552285883 |
10 | 12250421445 |
11 | 5217052a49 |
12 | 245a784319 |
13 | 1202cc3cb2 |
14 | 842da7433 |
15 | 4ba739780 |
hex | 2da2e98c5 |
12250421445 has 8 divisors (see below), whose sum is σ = 19600674336. Its totient is φ = 6533558096.
The previous prime is 12250421413. The next prime is 12250421473. The reversal of 12250421445 is 54412405221.
12250421445 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.
It is a sphenic number, since it is the product of 3 distinct primes.
It is a cyclic number.
It is not a de Polignac number, because 12250421445 - 25 = 12250421413 is a prime.
It is a congruent number.
It is an unprimeable number.
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, 408347367 + ... + 408347396.
It is an arithmetic number, because the mean of its divisors is an integer number (2450084292).
Almost surely, 212250421445 is an apocalyptic number.
12250421445 is a gapful number since it is divisible by the number (15) formed by its first and last digit.
It is an amenable number.
12250421445 is a deficient number, since it is larger than the sum of its proper divisors (7350252891).
12250421445 is an equidigital number, since it uses as much as digits as its factorization.
12250421445 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 816694771.
The product of its (nonzero) digits is 12800, while the sum is 30.
Adding to 12250421445 its reverse (54412405221), we get a palindrome (66662826666).
The spelling of 12250421445 in words is "twelve billion, two hundred fifty million, four hundred twenty-one thousand, four hundred forty-five".
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