Base | Representation |
---|---|
bin | 100111001111… |
… | …000101100001 |
3 | 201100112221002 |
4 | 213033011201 |
5 | 10113113114 |
6 | 1004241345 |
7 | 153265421 |
oct | 47170541 |
9 | 21315832 |
10 | 10285409 |
11 | 5895642 |
12 | 3540255 |
13 | 2191754 |
14 | 151a481 |
15 | d827de |
hex | 9cf161 |
10285409 has 2 divisors, whose sum is σ = 10285410. Its totient is φ = 10285408.
The previous prime is 10285351. The next prime is 10285417. The reversal of 10285409 is 90458201.
10285409 is digitally balanced in base 2 and base 3, because in such bases it contains all the possibile digits an equal number of times.
It is a strong prime.
It can be written as a sum of positive squares in only one way, i.e., 9891025 + 394384 = 3145^2 + 628^2 .
It is an emirp because it is prime and its reverse (90458201) is a distict prime.
It is a cyclic number.
It is a de Polignac number, because none of the positive numbers 2k-10285409 is a prime.
It is a Chen prime.
It is not a weakly prime, because it can be changed into another prime (10285469) by changing a digit.
It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5142704 + 5142705.
It is an arithmetic number, because the mean of its divisors is an integer number (5142705).
Almost surely, 210285409 is an apocalyptic number.
It is an amenable number.
10285409 is a deficient number, since it is larger than the sum of its proper divisors (1).
10285409 is an equidigital number, since it uses as much as digits as its factorization.
10285409 is an evil number, because the sum of its binary digits is even.
The product of its (nonzero) digits is 2880, while the sum is 29.
The square root of 10285409 is about 3207.0873078231. The cubic root of 10285409 is about 217.4739229757.
Subtracting from 10285409 its sum of digits (29), we obtain a triangular number (10285380 = T4535).
The spelling of 10285409 in words is "ten million, two hundred eighty-five thousand, four hundred nine".
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