Base | Representation |
---|---|
bin | 1000000110110… |
… | …11000001001111 |
3 | 11201222001122112 |
4 | 10003123001033 |
5 | 114402142332 |
6 | 10425334235 |
7 | 1454020061 |
oct | 403330117 |
9 | 151861575 |
10 | 68005967 |
11 | 35429987 |
12 | 1a93737b |
13 | 11121023 |
14 | 9063731 |
15 | 5e84db2 |
hex | 40db04f |
68005967 has 8 divisors (see below), whose sum is σ = 72875376. Its totient is φ = 63233152.
The previous prime is 68005939. The next prime is 68005979. The reversal of 68005967 is 76950086.
It is a happy number.
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 68005967 - 222 = 63811663 is a prime.
It is a Duffinian number.
68005967 is a modest number, since divided by 5967 gives 68 as remainder.
It is a congruent number.
It is not an unprimeable number, because it can be changed into a prime (68005867) 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, 22688 + ... + 25509.
It is an arithmetic number, because the mean of its divisors is an integer number (9109422).
Almost surely, 268005967 is an apocalyptic number.
68005967 is a deficient number, since it is larger than the sum of its proper divisors (4869409).
68005967 is a wasteful number, since it uses less digits than its factorization.
68005967 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 48297.
The product of its (nonzero) digits is 90720, while the sum is 41.
The square root of 68005967 is about 8246.5730458173. The cubic root of 68005967 is about 408.1774486837.
The spelling of 68005967 in words is "sixty-eight million, five thousand, nine hundred sixty-seven".
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