Base | Representation |
---|---|
bin | 1010101101000101001001 |
3 | 12021120020020 |
4 | 22231011021 |
5 | 1204243324 |
6 | 140051053 |
7 | 32565006 |
oct | 12550511 |
9 | 5246206 |
10 | 2806089 |
11 | 1647290 |
12 | b33a89 |
13 | 773310 |
14 | 5308ad |
15 | 3a6679 |
hex | 2ad149 |
2806089 has 32 divisors (see below), whose sum is σ = 4558848. Its totient is φ = 1512000.
The previous prime is 2806087. The next prime is 2806093. The reversal of 2806089 is 9806082.
It is not a de Polignac number, because 2806089 - 21 = 2806087 is a prime.
It is a Harshad number since it is a multiple of its sum of digits (33).
It is a Curzon number.
It is a nialpdrome in base 13.
It is not an unprimeable number, because it can be changed into a prime (2806087) 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, 13194 + ... + 13404.
It is an arithmetic number, because the mean of its divisors is an integer number (142464).
22806089 is an apocalyptic number.
It is an amenable number.
2806089 is a deficient number, since it is larger than the sum of its proper divisors (1752759).
2806089 is a wasteful number, since it uses less digits than its factorization.
2806089 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 269.
The product of its (nonzero) digits is 6912, while the sum is 33.
The square root of 2806089 is about 1675.1385017365. The cubic root of 2806089 is about 141.0480697226.
The spelling of 2806089 in words is "two million, eight hundred six thousand, eighty-nine".
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