Base | Representation |
---|---|
bin | 101110100010… |
… | …110110011101 |
3 | 211221220010201 |
4 | 232202312131 |
5 | 11110420443 |
6 | 1113303501 |
7 | 205465342 |
oct | 56426635 |
9 | 24856121 |
10 | 12201373 |
11 | 6984088 |
12 | 4104b91 |
13 | 26b2862 |
14 | 18987c9 |
15 | 111034d |
hex | ba2d9d |
12201373 has 4 divisors (see below), whose sum is σ = 12622140. Its totient is φ = 11780608.
The previous prime is 12201367. The next prime is 12201407. The reversal of 12201373 is 37310221.
It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 37310221 = 13 ⋅2870017.
It can be written as a sum of positive squares in 2 ways, for example, as 6335289 + 5866084 = 2517^2 + 2422^2 .
It is a cyclic number.
It is not a de Polignac number, because 12201373 - 221 = 10104221 is a prime.
It is a Duffinian number.
It is a self number, because there is not a number n which added to its sum of digits gives 12201373.
It is a congruent number.
It is not an unprimeable number, because it can be changed into a prime (12201323) 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, 210340 + ... + 210397.
It is an arithmetic number, because the mean of its divisors is an integer number (3155535).
Almost surely, 212201373 is an apocalyptic number.
It is an amenable number.
12201373 is a deficient number, since it is larger than the sum of its proper divisors (420767).
12201373 is an equidigital number, since it uses as much as digits as its factorization.
12201373 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 420766.
The product of its (nonzero) digits is 252, while the sum is 19.
The square root of 12201373 is about 3493.0463781633. The cubic root of 12201373 is about 230.2163874080.
Adding to 12201373 its reverse (37310221), we get a palindrome (49511594).
The spelling of 12201373 in words is "twelve million, two hundred one thousand, three hundred seventy-three".
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