Base | Representation |
---|---|
bin | 100110001110… |
… | …0011000100111 |
3 | 1101201002121212 |
4 | 1030130120213 |
5 | 20112223312 |
6 | 1553302035 |
7 | 332221226 |
oct | 114343047 |
9 | 41632555 |
10 | 20039207 |
11 | 10347831 |
12 | 686491b |
13 | 41c8226 |
14 | 2938cbd |
15 | 1b5c822 |
hex | 131c627 |
20039207 has 2 divisors, whose sum is σ = 20039208. Its totient is φ = 20039206.
The previous prime is 20039191. The next prime is 20039221. The reversal of 20039207 is 70293002.
It is a strong prime.
It is a cyclic number.
It is not a de Polignac number, because 20039207 - 24 = 20039191 is a prime.
It is a congruent number.
It is not a weakly prime, because it can be changed into another prime (20039287) by changing a digit.
It is a polite number, since it can be written as a sum of consecutive naturals, namely, 10019603 + 10019604.
It is an arithmetic number, because the mean of its divisors is an integer number (10019604).
Almost surely, 220039207 is an apocalyptic number.
20039207 is a deficient number, since it is larger than the sum of its proper divisors (1).
20039207 is an equidigital number, since it uses as much as digits as its factorization.
20039207 is an evil number, because the sum of its binary digits is even.
The product of its (nonzero) digits is 756, while the sum is 23.
The square root of 20039207 is about 4476.5172846757. The cubic root of 20039207 is about 271.6190194999.
The spelling of 20039207 in words is "twenty million, thirty-nine thousand, two hundred seven".
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