Base | Representation |
---|---|
bin | 11011001011100… |
… | …01111101111111 |
3 | 120220000222220121 |
4 | 31211301331333 |
5 | 431332222212 |
6 | 34342555411 |
7 | 5436014536 |
oct | 1545617577 |
9 | 526028817 |
10 | 228007807 |
11 | 107782705 |
12 | 64438b67 |
13 | 38312581 |
14 | 223d331d |
15 | 1503cd07 |
hex | d971f7f |
228007807 has 2 divisors, whose sum is σ = 228007808. Its totient is φ = 228007806.
The previous prime is 228007789. The next prime is 228007817. The reversal of 228007807 is 708700822.
It is a strong prime.
It is a cyclic number.
It is not a de Polignac number, because 228007807 - 215 = 227975039 is a prime.
It is a congruent number.
It is not a weakly prime, because it can be changed into another prime (228007817) by changing a digit.
It is a polite number, since it can be written as a sum of consecutive naturals, namely, 114003903 + 114003904.
It is an arithmetic number, because the mean of its divisors is an integer number (114003904).
Almost surely, 2228007807 is an apocalyptic number.
228007807 is a deficient number, since it is larger than the sum of its proper divisors (1).
228007807 is an equidigital number, since it uses as much as digits as its factorization.
228007807 is an evil number, because the sum of its binary digits is even.
The product of its (nonzero) digits is 12544, while the sum is 34.
The square root of 228007807 is about 15099.9273839314. The cubic root of 228007807 is about 610.9184471358.
The spelling of 228007807 in words is "two hundred twenty-eight million, seven thousand, eight hundred seven".
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