Base | Representation |
---|---|
bin | 1111111111101… |
… | …0110011111101 |
3 | 11200020101220102 |
4 | 3333322303331 |
5 | 114133300423 |
6 | 10353530445 |
7 | 1443143465 |
oct | 377726375 |
9 | 150211812 |
10 | 67087613 |
11 | 34961a0a |
12 | 1a573a25 |
13 | 10b8c018 |
14 | 8ca4ba5 |
15 | 5d52c28 |
hex | 3ffacfd |
67087613 has 8 divisors (see below), whose sum is σ = 70794720. Its totient is φ = 63398160.
The previous prime is 67087591. The next prime is 67087637. The reversal of 67087613 is 31678076.
It is a sphenic number, since it is the product of 3 distinct primes.
It is a cyclic number.
It is not a de Polignac number, because 67087613 - 210 = 67086589 is a prime.
It is a Duffinian number.
It is a congruent number.
It is not an unprimeable number, because it can be changed into a prime (67087693) by changing a digit.
It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 3806 + ... + 12192.
It is an arithmetic number, because the mean of its divisors is an integer number (8849340).
Almost surely, 267087613 is an apocalyptic number.
It is an amenable number.
67087613 is a deficient number, since it is larger than the sum of its proper divisors (3707107).
67087613 is a wasteful number, since it uses less digits than its factorization.
67087613 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 8827.
The product of its (nonzero) digits is 42336, while the sum is 38.
The square root of 67087613 is about 8190.7028391952. The cubic root of 67087613 is about 406.3317699544.
The spelling of 67087613 in words is "sixty-seven million, eighty-seven thousand, six hundred thirteen".
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