Base | Representation |
---|---|
bin | 100110001010… |
… | …0010001110111 |
3 | 1101122102002020 |
4 | 1030110101313 |
5 | 20110143012 |
6 | 1552444223 |
7 | 332022360 |
oct | 114242167 |
9 | 41572066 |
10 | 20006007 |
11 | 1032489a |
12 | 6849673 |
13 | 41b6098 |
14 | 292ab67 |
15 | 1b52a8c |
hex | 1314477 |
20006007 has 8 divisors (see below), whose sum is σ = 30485376. Its totient is φ = 11431992.
The previous prime is 20006003. The next prime is 20006023. The reversal of 20006007 is 70060002.
It is a sphenic number, since it is the product of 3 distinct primes.
It is not a de Polignac number, because 20006007 - 22 = 20006003 is a prime.
It is a congruent number.
It is not an unprimeable number, because it can be changed into a prime (20006003) by changing a digit.
It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 476313 + ... + 476354.
It is an arithmetic number, because the mean of its divisors is an integer number (3810672).
Almost surely, 220006007 is an apocalyptic number.
20006007 is a deficient number, since it is larger than the sum of its proper divisors (10479369).
20006007 is an equidigital number, since it uses as much as digits as its factorization.
20006007 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 952677.
The product of its (nonzero) digits is 84, while the sum is 15.
The square root of 20006007 is about 4472.8075075952. The cubic root of 20006007 is about 271.4689347836.
Adding to 20006007 its reverse (70060002), we get a palindrome (90066009).
The spelling of 20006007 in words is "twenty million, six thousand, seven".
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