Base | Representation |
---|---|
bin | 1000100000000010110111 |
3 | 11012012210121 |
4 | 20200002313 |
5 | 1032302112 |
6 | 115432411 |
7 | 24640546 |
oct | 10400267 |
9 | 4165717 |
10 | 2228407 |
11 | 1292265 |
12 | 8b5707 |
13 | 6003ac |
14 | 42015d |
15 | 2e0407 |
hex | 2200b7 |
2228407 has 2 divisors, whose sum is σ = 2228408. Its totient is φ = 2228406.
The previous prime is 2228393. The next prime is 2228417. The reversal of 2228407 is 7048222.
It is a strong prime.
It is a cyclic number.
It is not a de Polignac number, because 2228407 - 219 = 1704119 is a prime.
It is a d-powerful number, because it can be written as 25 + 27 + 217 + 87 + 42 + 0 + 7 .
It is a congruent number.
It is not a weakly prime, because it can be changed into another prime (2228417) by changing a digit.
It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1114203 + 1114204.
It is an arithmetic number, because the mean of its divisors is an integer number (1114204).
22228407 is an apocalyptic number.
2228407 is a deficient number, since it is larger than the sum of its proper divisors (1).
2228407 is an equidigital number, since it uses as much as digits as its factorization.
2228407 is an evil number, because the sum of its binary digits is even.
The product of its (nonzero) digits is 1792, while the sum is 25.
The square root of 2228407 is about 1492.7849811678. The cubic root of 2228407 is about 130.6165388321.
The spelling of 2228407 in words is "two million, two hundred twenty-eight thousand, four hundred seven".
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