Base | Representation |
---|---|
bin | 101000000010110… |
… | …101011101001110 |
3 | 1201211011121002110 |
4 | 220002311131032 |
5 | 2333442110021 |
6 | 150355404450 |
7 | 22435322355 |
oct | 5002653516 |
9 | 1654147073 |
10 | 671831886 |
11 | 315260270 |
12 | 168bb3726 |
13 | a925917b |
14 | 6532499c |
15 | 3deab476 |
hex | 280b574e |
671831886 has 32 divisors (see below), whose sum is σ = 1529549568. Its totient is φ = 194733440.
The previous prime is 671831873. The next prime is 671831899. The reversal of 671831886 is 688138176.
It is an interprime number because it is at equal distance from previous prime (671831873) and next prime (671831899).
It is a congruent number.
It is an unprimeable number.
It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 219771 + ... + 222806.
It is an arithmetic number, because the mean of its divisors is an integer number (47798424).
Almost surely, 2671831886 is an apocalyptic number.
671831886 is a gapful number since it is divisible by the number (66) formed by its first and last digit.
671831886 is an abundant number, since it is smaller than the sum of its proper divisors (857717682).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
671831886 is a wasteful number, since it uses less digits than its factorization.
671831886 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 442616.
The product of its digits is 387072, while the sum is 48.
The square root of 671831886 is about 25919.7200216360. The cubic root of 671831886 is about 875.8307803699.
The spelling of 671831886 in words is "six hundred seventy-one million, eight hundred thirty-one thousand, eight hundred eighty-six".
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