Base | Representation |
---|---|
bin | 1000000010111… |
… | …00001000010001 |
3 | 11200222122200211 |
4 | 10001130020101 |
5 | 114234024400 |
6 | 10410244121 |
7 | 1446423562 |
oct | 401341021 |
9 | 150878624 |
10 | 67486225 |
11 | 35104444 |
12 | 1a726641 |
13 | 10c9b5a1 |
14 | 8d6a169 |
15 | 5dd0dba |
hex | 405c211 |
67486225 has 27 divisors (see below), whose sum is σ = 88131729. Its totient is φ = 51261600.
The previous prime is 67486217. The next prime is 67486229. The reversal of 67486225 is 52268476.
The square root of 67486225 is 8215.
It is a perfect power (a square), and thus also a powerful number.
67486225 is nontrivially palindromic in base 3.
It can be written as a sum of positive squares in 4 ways, for example, as 508369 + 66977856 = 713^2 + 8184^2 .
It is not a de Polignac number, because 67486225 - 23 = 67486217 is a prime.
It is not an unprimeable number, because it can be changed into a prime (67486229) by changing a digit.
It is a polite number, since it can be written in 26 ways as a sum of consecutive naturals, for example, 1273299 + ... + 1273351.
Almost surely, 267486225 is an apocalyptic number.
67486225 is the 8215-th square number.
67486225 is the 4108-th centered octagonal number.
It is an amenable number.
67486225 is a deficient number, since it is larger than the sum of its proper divisors (20645504).
67486225 is an equidigital number, since it uses as much as digits as its factorization.
With its predecessor (67486224) it forms an eRAP, since the sums of their prime factors are consecutive (177 and 178).
67486225 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 178 (or 89 counting only the distinct ones).
The product of its digits is 161280, while the sum is 40.
The cubic root of 67486225 is about 407.1349434918.
The spelling of 67486225 in words is "sixty-seven million, four hundred eighty-six thousand, two hundred twenty-five".
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