Base | Representation |
---|---|
bin | 1000011110001100000001 |
3 | 11011211100220 |
4 | 20132030001 |
5 | 1032031201 |
6 | 115333253 |
7 | 24606432 |
oct | 10361401 |
9 | 4154326 |
10 | 2220801 |
11 | 1287580 |
12 | 8b1229 |
13 | 5c9aab |
14 | 41b489 |
15 | 2dd036 |
hex | 21e301 |
2220801 has 16 divisors (see below), whose sum is σ = 3257280. Its totient is φ = 1334720.
The previous prime is 2220787. The next prime is 2220839. The reversal of 2220801 is 1080222.
It is a cyclic number.
It is not a de Polignac number, because 2220801 - 29 = 2220289 is a prime.
2220801 is a lucky number.
It is not an unprimeable number, because it can be changed into a prime (2220301) by changing a digit.
It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 5515 + ... + 5903.
It is an arithmetic number, because the mean of its divisors is an integer number (203580).
22220801 is an apocalyptic number.
It is an amenable number.
2220801 is a deficient number, since it is larger than the sum of its proper divisors (1036479).
2220801 is a wasteful number, since it uses less digits than its factorization.
2220801 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 576.
The product of its (nonzero) digits is 64, while the sum is 15.
The square root of 2220801 is about 1490.2352163333. The cubic root of 2220801 is about 130.4677626218.
The spelling of 2220801 in words is "two million, two hundred twenty thousand, eight hundred one".
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