Base | Representation |
---|---|
bin | 11010111010001… |
… | …11110011110001 |
3 | 120201202200021112 |
4 | 31131013303301 |
5 | 430242103334 |
6 | 34222203105 |
7 | 5410512122 |
oct | 1535076361 |
9 | 521680245 |
10 | 225737969 |
11 | 106472306 |
12 | 63723495 |
13 | 379c9382 |
14 | 21da2049 |
15 | 14c404ce |
hex | d747cf1 |
225737969 has 2 divisors, whose sum is σ = 225737970. Its totient is φ = 225737968.
The previous prime is 225737957. The next prime is 225737977. The reversal of 225737969 is 969737522.
It is a happy number.
It is a strong prime.
It can be written as a sum of positive squares in only one way, i.e., 170041600 + 55696369 = 13040^2 + 7463^2 .
It is a cyclic number.
It is not a de Polignac number, because 225737969 - 220 = 224689393 is a prime.
It is a super-2 number, since 2×2257379692 = 101915261296489922, which contains 22 as substring.
It is a Chen prime.
It is not a weakly prime, because it can be changed into another prime (225737989) by changing a digit.
It is a pernicious number, because its binary representation contains a prime number (17) of ones.
It is a polite number, since it can be written as a sum of consecutive naturals, namely, 112868984 + 112868985.
It is an arithmetic number, because the mean of its divisors is an integer number (112868985).
Almost surely, 2225737969 is an apocalyptic number.
It is an amenable number.
225737969 is a deficient number, since it is larger than the sum of its proper divisors (1).
225737969 is an equidigital number, since it uses as much as digits as its factorization.
225737969 is an odious number, because the sum of its binary digits is odd.
The product of its digits is 1428840, while the sum is 50.
The square root of 225737969 is about 15024.5788293716. The cubic root of 225737969 is about 608.8844333724.
The spelling of 225737969 in words is "two hundred twenty-five million, seven hundred thirty-seven thousand, nine hundred sixty-nine".
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