Base | Representation |
---|---|
bin | 111100011100011… |
… | …1100011001111101 |
3 | 12020100101220022021 |
4 | 1320320330121331 |
5 | 13123204142110 |
6 | 533131120141 |
7 | 101155234210 |
oct | 17070743175 |
9 | 5210356267 |
10 | 2028193405 |
11 | 9509537a7 |
12 | 4872a3051 |
13 | 264268c54 |
14 | 153517777 |
15 | bd0d12da |
hex | 78e3c67d |
2028193405 has 16 divisors (see below), whose sum is σ = 2784991104. Its totient is φ = 1389026880.
The previous prime is 2028193393. The next prime is 2028193417. The reversal of 2028193405 is 5043918202.
It is an interprime number because it is at equal distance from previous prime (2028193393) and next prime (2028193417).
It is not a de Polignac number, because 2028193405 - 29 = 2028192893 is a prime.
It is a super-2 number, since 2×20281934052 = 8227136976170988050, which contains 22 as substring.
It is a congruent number.
It is an unprimeable number.
It is a pernicious number, because its binary representation contains a prime number (19) of ones.
It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 7342 + ... + 64111.
It is an arithmetic number, because the mean of its divisors is an integer number (174061944).
Almost surely, 22028193405 is an apocalyptic number.
It is an amenable number.
2028193405 is a deficient number, since it is larger than the sum of its proper divisors (756797699).
2028193405 is an equidigital number, since it uses as much as digits as its factorization.
2028193405 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 72276.
The product of its (nonzero) digits is 17280, while the sum is 34.
The square root of 2028193405 is about 45035.4682999966. The cubic root of 2028193405 is about 1265.8136911616.
The spelling of 2028193405 in words is "two billion, twenty-eight million, one hundred ninety-three thousand, four hundred five".
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