Base | Representation |
---|---|
bin | 100100100100011… |
… | …1010110011110101 |
3 | 10011111221212012000 |
4 | 1021020322303311 |
5 | 10003112343210 |
6 | 321432245513 |
7 | 42256651365 |
oct | 11110726365 |
9 | 3144855160 |
10 | 1227074805 |
11 | 57a719510 |
12 | 2a2b40899 |
13 | 1672b3b88 |
14 | b8d7a9a5 |
15 | 72ad7ac0 |
hex | 4923acf5 |
1227074805 has 32 divisors (see below), whose sum is σ = 2379784320. Its totient is φ = 594944640.
The previous prime is 1227074759. The next prime is 1227074809. The reversal of 1227074805 is 5084707221.
1227074805 is digitally balanced in base 4, because in such base it contains all the possibile digits an equal number of times.
It is not a de Polignac number, because 1227074805 - 27 = 1227074677 is a prime.
It is a self number, because there is not a number n which added to its sum of digits gives 1227074805.
It is a congruent number.
It is not an unprimeable number, because it can be changed into a prime (1227074809) 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, 411672 + ... + 414641.
It is an arithmetic number, because the mean of its divisors is an integer number (74368260).
Almost surely, 21227074805 is an apocalyptic number.
1227074805 is a gapful number since it is divisible by the number (15) formed by its first and last digit.
It is an amenable number.
1227074805 is a deficient number, since it is larger than the sum of its proper divisors (1152709515).
1227074805 is a wasteful number, since it uses less digits than its factorization.
1227074805 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 826338 (or 826332 counting only the distinct ones).
The product of its (nonzero) digits is 31360, while the sum is 36.
The square root of 1227074805 is about 35029.6275315625. The cubic root of 1227074805 is about 1070.5912256514.
The spelling of 1227074805 in words is "one billion, two hundred twenty-seven million, seventy-four thousand, eight hundred five".
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