Base | Representation |
---|---|
bin | 10000010111111101… |
… | …00001001011110100 |
3 | 211200122120121110020 |
4 | 20023332201023310 |
5 | 121000430412240 |
6 | 4012150525140 |
7 | 430563120552 |
oct | 101376411364 |
9 | 24618517406 |
10 | 8790872820 |
11 | 3801244954 |
12 | 18540667b0 |
13 | aa134b7c2 |
14 | 5d5738bd2 |
15 | 366b6d0d0 |
hex | 20bfa12f4 |
8790872820 has 48 divisors (see below), whose sum is σ = 24692145408. Its totient is φ = 2336832640.
The previous prime is 8790872813. The next prime is 8790872821. The reversal of 8790872820 is 282780978.
It is a happy number.
8790872820 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.
It is a congruent number.
It is not an unprimeable number, because it can be changed into a prime (8790872821) by changing a digit.
It is a pernicious number, because its binary representation contains a prime number (17) of ones.
It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 212076 + ... + 250115.
It is an arithmetic number, because the mean of its divisors is an integer number (514419696).
Almost surely, 28790872820 is an apocalyptic number.
It is an amenable number.
8790872820 is an abundant number, since it is smaller than the sum of its proper divisors (15901272588).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
8790872820 is a wasteful number, since it uses less digits than its factorization.
8790872820 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 462520 (or 462518 counting only the distinct ones).
The product of its (nonzero) digits is 903168, while the sum is 51.
The square root of 8790872820 is about 93759.6545428789. The cubic root of 8790872820 is about 2063.8462107862.
The spelling of 8790872820 in words is "eight billion, seven hundred ninety million, eight hundred seventy-two thousand, eight hundred twenty".
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