Base | Representation |
---|---|
bin | 100111101010… |
… | …0111101011011 |
3 | 1110010111200121 |
4 | 1033110331123 |
5 | 20310421402 |
6 | 2021414111 |
7 | 341520325 |
oct | 117247533 |
9 | 43114617 |
10 | 20795227 |
11 | 10813842 |
12 | 6b6a337 |
13 | 440138b |
14 | 2a94615 |
15 | 1c5b837 |
hex | 13d4f5b |
20795227 has 4 divisors (see below), whose sum is σ = 20828016. Its totient is φ = 20762440.
The previous prime is 20795219. The next prime is 20795231. The reversal of 20795227 is 72259702.
It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 72259702 = 2 ⋅36129851.
It is a cyclic number.
It is not a de Polignac number, because 20795227 - 23 = 20795219 is a prime.
It is a Duffinian number.
It is a junction number, because it is equal to n+sod(n) for n = 20795192 and 20795201.
It is not an unprimeable number, because it can be changed into a prime (20795297) 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, 15424 + ... + 16717.
It is an arithmetic number, because the mean of its divisors is an integer number (5207004).
Almost surely, 220795227 is an apocalyptic number.
20795227 is a deficient number, since it is larger than the sum of its proper divisors (32789).
20795227 is an equidigital number, since it uses as much as digits as its factorization.
20795227 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 32788.
The product of its (nonzero) digits is 17640, while the sum is 34.
The square root of 20795227 is about 4560.1783956332. The cubic root of 20795227 is about 274.9927358963.
The spelling of 20795227 in words is "twenty million, seven hundred ninety-five thousand, two hundred twenty-seven".
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