Base | Representation |
---|---|
bin | 1000000001100… |
… | …10010110001001 |
3 | 11200122221221011 |
4 | 10000302112021 |
5 | 114213040311 |
6 | 10402443521 |
7 | 1445111611 |
oct | 400622611 |
9 | 150587834 |
10 | 67315081 |
11 | 34aa78a9 |
12 | 1a6635a1 |
13 | 10c3b712 |
14 | 8d23a41 |
15 | 5d9a321 |
hex | 4032589 |
67315081 has 8 divisors (see below), whose sum is σ = 72506720. Its totient is φ = 62288352.
The previous prime is 67315069. The next prime is 67315103. The reversal of 67315081 is 18051376.
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 67315081 - 211 = 67313033 is a prime.
It is a super-2 number, since 2×673150812 = 9062640260073122, which contains 22 as substring.
It is a Duffinian number.
It is not an unprimeable number, because it can be changed into a prime (67315051) 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, 40380 + ... + 42013.
It is an arithmetic number, because the mean of its divisors is an integer number (9063340).
Almost surely, 267315081 is an apocalyptic number.
It is an amenable number.
67315081 is a deficient number, since it is larger than the sum of its proper divisors (5191639).
67315081 is a wasteful number, since it uses less digits than its factorization.
67315081 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 82455.
The product of its (nonzero) digits is 5040, while the sum is 31.
The square root of 67315081 is about 8204.5768324759. The cubic root of 67315081 is about 406.7904895570.
The spelling of 67315081 in words is "sixty-seven million, three hundred fifteen thousand, eighty-one".
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