Base | Representation |
---|---|
bin | 100110001001… |
… | …1010110011001 |
3 | 1101122012212021 |
4 | 1030103112121 |
5 | 20110032301 |
6 | 1552414441 |
7 | 332005312 |
oct | 114232631 |
9 | 41565767 |
10 | 20002201 |
11 | 10321a4a |
12 | 6847421 |
13 | 41b442b |
14 | 2929609 |
15 | 1b518a1 |
hex | 1313599 |
20002201 has 2 divisors, whose sum is σ = 20002202. Its totient is φ = 20002200.
The previous prime is 20002189. The next prime is 20002261. The reversal of 20002201 is 10220002.
It is a happy number.
It is a weak prime.
It can be written as a sum of positive squares in only one way, i.e., 18619225 + 1382976 = 4315^2 + 1176^2 .
It is a cyclic number.
It is not a de Polignac number, because 20002201 - 211 = 20000153 is a prime.
It is not a weakly prime, because it can be changed into another prime (20002261) by changing a digit.
It is a polite number, since it can be written as a sum of consecutive naturals, namely, 10001100 + 10001101.
It is an arithmetic number, because the mean of its divisors is an integer number (10001101).
Almost surely, 220002201 is an apocalyptic number.
It is an amenable number.
20002201 is a deficient number, since it is larger than the sum of its proper divisors (1).
20002201 is an equidigital number, since it uses as much as digits as its factorization.
20002201 is an evil number, because the sum of its binary digits is even.
The product of its (nonzero) digits is 8, while the sum is 7.
The square root of 20002201 is about 4472.3820275106. The cubic root of 20002201 is about 271.4517186829.
Adding to 20002201 its reverse (10220002), we get a palindrome (30222203).
The spelling of 20002201 in words is "twenty million, two thousand, two hundred one".
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