Base | Representation |
---|---|
bin | 11010101001100001100110 |
3 | 111010220202110 |
4 | 122221201212 |
5 | 3242021310 |
6 | 405421450 |
7 | 113243565 |
oct | 32514146 |
9 | 14126673 |
10 | 6985830 |
11 | 3a41615 |
12 | 240a886 |
13 | 15a7937 |
14 | cdbbdc |
15 | 92ed20 |
hex | 6a9866 |
6985830 has 16 divisors (see below), whose sum is σ = 16766064. Its totient is φ = 1862880.
The previous prime is 6985829. The next prime is 6985831. The reversal of 6985830 is 385896.
6985830 is nontrivially palindromic in base 14.
It is an interprime number because it is at equal distance from previous prime (6985829) and next prime (6985831).
It is an alternating number because its digits alternate between even and odd.
It is a congruent number.
It is not an unprimeable number, because it can be changed into a prime (6985831) 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 7 ways as a sum of consecutive naturals, for example, 116401 + ... + 116460.
It is an arithmetic number, because the mean of its divisors is an integer number (1047879).
Almost surely, 26985830 is an apocalyptic number.
6985830 is an abundant number, since it is smaller than the sum of its proper divisors (9780234).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
6985830 is a wasteful number, since it uses less digits than its factorization.
6985830 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 232871.
The product of its (nonzero) digits is 51840, while the sum is 39.
The square root of 6985830 is about 2643.0720762022. The cubic root of 6985830 is about 191.1639537739.
The spelling of 6985830 in words is "six million, nine hundred eighty-five thousand, eight hundred thirty".
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