Base | Representation |
---|---|
bin | 10010101010101111… |
… | …01111000110011111 |
3 | 221212110120112111102 |
4 | 21111113233012133 |
5 | 131011142021231 |
6 | 4334254543315 |
7 | 503234315564 |
oct | 112527570637 |
9 | 27773515442 |
10 | 10022220191 |
11 | 4283311405 |
12 | 1b38507b3b |
13 | c3949a309 |
14 | 6b10a886b |
15 | 3d9cebacb |
hex | 2555ef19f |
10022220191 has 4 divisors (see below), whose sum is σ = 10022818800. Its totient is φ = 10021621584.
The previous prime is 10022220181. The next prime is 10022220193. The reversal of 10022220191 is 19102222001.
It is a happy number.
It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 19102222001 = 42961 ⋅444641.
It is a cyclic number.
It is not a de Polignac number, because 10022220191 - 26 = 10022220127 is a prime.
It is a Duffinian number.
It is a congruent number.
It is not an unprimeable number, because it can be changed into a prime (10022220193) by changing a digit.
It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 273446 + ... + 307923.
It is an arithmetic number, because the mean of its divisors is an integer number (2505704700).
Almost surely, 210022220191 is an apocalyptic number.
10022220191 is a deficient number, since it is larger than the sum of its proper divisors (598609).
10022220191 is an equidigital number, since it uses as much as digits as its factorization.
10022220191 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 598608.
The product of its (nonzero) digits is 144, while the sum is 20.
Adding to 10022220191 its reverse (19102222001), we get a palindrome (29124442192).
The spelling of 10022220191 in words is "ten billion, twenty-two million, two hundred twenty thousand, one hundred ninety-one".
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