Base | Representation |
---|---|
bin | 100111101110… |
… | …0101101111111 |
3 | 1110012010021122 |
4 | 1033130231333 |
5 | 20312431012 |
6 | 2022221155 |
7 | 342012065 |
oct | 117345577 |
9 | 43163248 |
10 | 20827007 |
11 | 10835703 |
12 | 6b847bb |
13 | 4412996 |
14 | 2aa2035 |
15 | 1c65e72 |
hex | 13dcb7f |
20827007 has 8 divisors (see below), whose sum is σ = 21584640. Its totient is φ = 20081880.
The previous prime is 20827003. The next prime is 20827013. The reversal of 20827007 is 70072802.
It is a sphenic number, since it is the product of 3 distinct primes.
It is a cyclic number.
It is not a de Polignac number, because 20827007 - 22 = 20827003 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 (20827003) 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, 332 + ... + 6462.
It is an arithmetic number, because the mean of its divisors is an integer number (2698080).
Almost surely, 220827007 is an apocalyptic number.
20827007 is a deficient number, since it is larger than the sum of its proper divisors (757633).
20827007 is an equidigital number, since it uses as much as digits as its factorization.
20827007 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 6253.
The product of its (nonzero) digits is 1568, while the sum is 26.
The square root of 20827007 is about 4563.6615781629. The cubic root of 20827007 is about 275.1327491316.
Adding to 20827007 its reverse (70072802), we get a palindrome (90899809).
The spelling of 20827007 in words is "twenty million, eight hundred twenty-seven thousand, seven".
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