Base | Representation |
---|---|
bin | 1000000010111… |
… | …00010101101101 |
3 | 11200222200212200 |
4 | 10001130111231 |
5 | 114234041320 |
6 | 10410252113 |
7 | 1446426231 |
oct | 401342555 |
9 | 150880780 |
10 | 67487085 |
11 | 35105056 |
12 | 1a727039 |
13 | 10c9bab3 |
14 | 8d6a5c1 |
15 | 5dd1290 |
hex | 405c56d |
67487085 has 12 divisors (see below), whose sum is σ = 116977692. Its totient is φ = 35993088.
The previous prime is 67487047. The next prime is 67487087. The reversal of 67487085 is 58078476.
It can be written as a sum of positive squares in 2 ways, for example, as 26347689 + 41139396 = 5133^2 + 6414^2 .
It is not a de Polignac number, because 67487085 - 214 = 67470701 is a prime.
It is a Smith number, since the sum of its digits (45) coincides with the sum of the digits of its prime factors.
It is a Harshad number since it is a multiple of its sum of digits (45), and also a Moran number because the ratio is a prime number: 1499713 = 67487085 / (6 + 7 + 4 + 8 + 7 + 0 + 8 + 5).
It is a self number, because there is not a number n which added to its sum of digits gives 67487085.
It is a congruent number.
It is not an unprimeable number, because it can be changed into a prime (67487087) by changing a digit.
It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 749812 + ... + 749901.
It is an arithmetic number, because the mean of its divisors is an integer number (9748141).
Almost surely, 267487085 is an apocalyptic number.
It is an amenable number.
67487085 is a deficient number, since it is larger than the sum of its proper divisors (49490607).
67487085 is a wasteful number, since it uses less digits than its factorization.
67487085 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 1499724 (or 1499721 counting only the distinct ones).
The product of its (nonzero) digits is 376320, while the sum is 45.
The square root of 67487085 is about 8215.0523431077. The cubic root of 67487085 is about 407.1366729044.
The spelling of 67487085 in words is "sixty-seven million, four hundred eighty-seven thousand, eighty-five".
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