Base | Representation |
---|---|
bin | 1111000001111000… |
… | …10011101010011101 |
3 | 202211100000012201000 |
4 | 13200330103222131 |
5 | 113011112412421 |
6 | 3412355540513 |
7 | 403645200450 |
oct | 74074235235 |
9 | 22740005630 |
10 | 8068872861 |
11 | 3470739675 |
12 | 16922ba739 |
13 | 9b78a88aa |
14 | 5678b5497 |
15 | 3235a2226 |
hex | 1e0f13a9d |
8068872861 has 32 divisors (see below), whose sum is σ = 14380620800. Its totient is φ = 4368109680.
The previous prime is 8068872859. The next prime is 8068872869. The reversal of 8068872861 is 1682788608.
It is not a de Polignac number, because 8068872861 - 21 = 8068872859 is a prime.
It is a junction number, because it is equal to n+sod(n) for n = 8068872798 and 8068872807.
It is a congruent number.
It is not an unprimeable number, because it can be changed into a prime (8068872869) by changing a digit.
It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 1119895 + ... + 1127076.
It is an arithmetic number, because the mean of its divisors is an integer number (449394400).
Almost surely, 28068872861 is an apocalyptic number.
It is an amenable number.
8068872861 is a deficient number, since it is larger than the sum of its proper divisors (6311747939).
8068872861 is a wasteful number, since it uses less digits than its factorization.
8068872861 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 2247006 (or 2247000 counting only the distinct ones).
The product of its (nonzero) digits is 2064384, while the sum is 54.
The square root of 8068872861 is about 89826.9049951071. The cubic root of 8068872861 is about 2005.7230130239.
The spelling of 8068872861 in words is "eight billion, sixty-eight million, eight hundred seventy-two thousand, eight hundred sixty-one".
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