Base | Representation |
---|---|
bin | 111111100000011111111 |
3 | 10220201121221 |
4 | 13330003333 |
5 | 1013043043 |
6 | 112334211 |
7 | 23455060 |
oct | 7740377 |
9 | 3821557 |
10 | 2081023 |
11 | 11a155a |
12 | 844367 |
13 | 57b299 |
14 | 3c2567 |
15 | 2b18ed |
hex | 1fc0ff |
2081023 has 4 divisors (see below), whose sum is σ = 2378320. Its totient is φ = 1783728.
The previous prime is 2080979. The next prime is 2081029. The reversal of 2081023 is 3201802.
It is a happy number.
It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 3201802 = 2 ⋅1600901.
It is a cyclic number.
It is not a de Polignac number, because 2081023 - 213 = 2072831 is a prime.
It is a zygodrome in base 2.
It is a junction number, because it is equal to n+sod(n) for n = 2080988 and 2081006.
It is a congruent number.
It is not an unprimeable number, because it can be changed into a prime (2081029) 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, 148638 + ... + 148651.
It is an arithmetic number, because the mean of its divisors is an integer number (594580).
22081023 is an apocalyptic number.
2081023 is a deficient number, since it is larger than the sum of its proper divisors (297297).
2081023 is an equidigital number, since it uses as much as digits as its factorization.
2081023 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 297296.
The product of its (nonzero) digits is 96, while the sum is 16.
The square root of 2081023 is about 1442.5751280263. The cubic root of 2081023 is about 127.6710097969.
Adding to 2081023 its reverse (3201802), we get a palindrome (5282825).
The spelling of 2081023 in words is "two million, eighty-one thousand, twenty-three".
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