Base | Representation |
---|---|
bin | 1000011010011100110001 |
3 | 11011001100210 |
4 | 20122130301 |
5 | 1031033424 |
6 | 115134333 |
7 | 24513666 |
oct | 10323461 |
9 | 4131323 |
10 | 2205489 |
11 | 1277020 |
12 | 8a43a9 |
13 | 5c2b30 |
14 | 415a6d |
15 | 2d8729 |
hex | 21a731 |
2205489 has 32 divisors (see below), whose sum is σ = 3556224. Its totient is φ = 1198080.
The previous prime is 2205487. The next prime is 2205503. The reversal of 2205489 is 9845022.
It is not a de Polignac number, because 2205489 - 21 = 2205487 is a prime.
2205489 is a lucky number.
It is a congruent number.
It is not an unprimeable number, because it can be changed into a prime (2205481) by changing a digit.
It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 22689 + ... + 22785.
It is an arithmetic number, because the mean of its divisors is an integer number (111132).
22205489 is an apocalyptic number.
It is an amenable number.
2205489 is a deficient number, since it is larger than the sum of its proper divisors (1350735).
2205489 is a wasteful number, since it uses less digits than its factorization.
2205489 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 177.
The product of its (nonzero) digits is 5760, while the sum is 30.
The square root of 2205489 is about 1485.0888862287. The cubic root of 2205489 is about 130.1672207070.
The spelling of 2205489 in words is "two million, two hundred five thousand, four hundred eighty-nine".
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