Base | Representation |
---|---|
bin | 10110101110101110… |
… | …10000010100110101 |
3 | 1011111110100100100202 |
4 | 23113113100110311 |
5 | 144443000212323 |
6 | 5334523250245 |
7 | 611255624636 |
oct | 132727202465 |
9 | 34443310322 |
10 | 12203132213 |
11 | 51a2393938 |
12 | 2446979985 |
13 | 11c62776bc |
14 | 83a9b788d |
15 | 4b64e7d28 |
hex | 2d75d0535 |
12203132213 has 4 divisors (see below), whose sum is σ = 12203353440. Its totient is φ = 12202910988.
The previous prime is 12203132209. The next prime is 12203132231. The reversal of 12203132213 is 31223130221.
It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also a brilliant number, because the two primes have the same length.
It is a cyclic number.
It is not a de Polignac number, because 12203132213 - 22 = 12203132209 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 (12203132203) 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, 46808 + ... + 163086.
It is an arithmetic number, because the mean of its divisors is an integer number (3050838360).
Almost surely, 212203132213 is an apocalyptic number.
It is an amenable number.
12203132213 is a deficient number, since it is larger than the sum of its proper divisors (221227).
12203132213 is a wasteful number, since it uses less digits than its factorization.
12203132213 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 221226.
The product of its (nonzero) digits is 432, while the sum is 20.
Adding to 12203132213 its reverse (31223130221), we get a palindrome (43426262434).
The spelling of 12203132213 in words is "twelve billion, two hundred three million, one hundred thirty-two thousand, two hundred thirteen".
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