Base | Representation |
---|---|
bin | 11110111111001000000001 |
3 | 120021200111110 |
4 | 132333020001 |
5 | 4034413011 |
6 | 450033533 |
7 | 126020604 |
oct | 36771001 |
9 | 16250443 |
10 | 8122881 |
11 | 4648928 |
12 | 28788a9 |
13 | 18b5350 |
14 | 111633b |
15 | aa6ba6 |
hex | 7bf201 |
8122881 has 8 divisors (see below), whose sum is σ = 11663680. Its totient is φ = 4998672.
The previous prime is 8122847. The next prime is 8122903. The reversal of 8122881 is 1882218.
It is a sphenic number, since it is the product of 3 distinct primes.
It is not a de Polignac number, because 8122881 - 29 = 8122369 is a prime.
It is a super-2 number, since 2×81228812 = 131962391480322, which contains 22 as substring.
It is a Duffinian number.
It is not an unprimeable number, because it can be changed into a prime (8122181) by changing a digit.
It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 104101 + ... + 104178.
It is an arithmetic number, because the mean of its divisors is an integer number (1457960).
Almost surely, 28122881 is an apocalyptic number.
It is an amenable number.
8122881 is a deficient number, since it is larger than the sum of its proper divisors (3540799).
8122881 is a wasteful number, since it uses less digits than its factorization.
8122881 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 208295.
The product of its digits is 2048, while the sum is 30.
The square root of 8122881 is about 2850.0668413214. The cubic root of 8122881 is about 201.0188096553.
The spelling of 8122881 in words is "eight million, one hundred twenty-two thousand, eight hundred eighty-one".
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