Base | Representation |
---|---|
bin | 11110111001111111110000 |
3 | 120020121200100 |
4 | 132321333300 |
5 | 4033224442 |
6 | 445352400 |
7 | 125602422 |
oct | 36717760 |
9 | 16217610 |
10 | 8101872 |
11 | 4634069 |
12 | 2868700 |
13 | 18a890c |
14 | 110c812 |
15 | aa084c |
hex | 7b9ff0 |
8101872 has 30 divisors (see below), whose sum is σ = 22674392. Its totient is φ = 2700576.
The previous prime is 8101871. The next prime is 8101901. The reversal of 8101872 is 2781018.
It is a hoax number, since the sum of its digits (27) coincides with the sum of the digits of its distinct prime factors.
It is an Ulam number.
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 (8101871) by changing a digit.
It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 27988 + ... + 28275.
Almost surely, 28101872 is an apocalyptic number.
It is an amenable number.
8101872 is an abundant number, since it is smaller than the sum of its proper divisors (14572520).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
8101872 is a wasteful number, since it uses less digits than its factorization.
8101872 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 56277 (or 56268 counting only the distinct ones).
The product of its (nonzero) digits is 896, while the sum is 27.
The square root of 8101872 is about 2846.3787520286. The cubic root of 8101872 is about 200.8453551722.
The spelling of 8101872 in words is "eight million, one hundred one thousand, eight hundred seventy-two".
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