Base | Representation |
---|---|
bin | 1000001010010… |
… | …01100010101110 |
3 | 11202211001122022 |
4 | 10011021202232 |
5 | 120011134140 |
6 | 10443150142 |
7 | 1460613650 |
oct | 405114256 |
9 | 152731568 |
10 | 68458670 |
11 | 35709015 |
12 | 1ab15352 |
13 | 1124c0b7 |
14 | 91406d0 |
15 | 60240b5 |
hex | 41498ae |
68458670 has 32 divisors (see below), whose sum is σ = 142769088. Its totient is φ = 23148288.
The previous prime is 68458667. The next prime is 68458673. The reversal of 68458670 is 7685486.
It is an interprime number because it is at equal distance from previous prime (68458667) and next prime (68458673).
It is a congruent number.
It is not an unprimeable number, because it can be changed into a prime (68458673) by changing a digit.
It is a pernicious number, because its binary representation contains a prime number (11) of ones.
It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1589 + ... + 11808.
It is an arithmetic number, because the mean of its divisors is an integer number (4461534).
Almost surely, 268458670 is an apocalyptic number.
68458670 is an abundant number, since it is smaller than the sum of its proper divisors (74310418).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
68458670 is a wasteful number, since it uses less digits than its factorization.
68458670 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 13484.
The product of its (nonzero) digits is 322560, while the sum is 44.
The square root of 68458670 is about 8273.9754652767. The cubic root of 68458670 is about 409.0811666516.
The spelling of 68458670 in words is "sixty-eight million, four hundred fifty-eight thousand, six hundred seventy".
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