Base | Representation |
---|---|
bin | 10000101111011100… |
… | …10110010101100001 |
3 | 212012101102201011100 |
4 | 20113232112111201 |
5 | 121401404220143 |
6 | 4043511105013 |
7 | 435505255656 |
oct | 102756262541 |
9 | 25171381140 |
10 | 8987960673 |
11 | 38a251897a |
12 | 18aa072169 |
13 | b03126433 |
14 | 61399dc2d |
15 | 3790ee6d3 |
hex | 217b96561 |
8987960673 has 24 divisors (see below), whose sum is σ = 14081578056. Its totient is φ = 5501952000.
The previous prime is 8987960651. The next prime is 8987960693. The reversal of 8987960673 is 3760697898.
It is a happy number.
8987960673 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.
It can be written as a sum of positive squares in 4 ways, for example, as 1933976529 + 7053984144 = 43977^2 + 83988^2 .
It is not a de Polignac number, because 8987960673 - 212 = 8987956577 is a prime.
It is a super-2 number, since 2×89879606732 (a number of 21 digits) contains 22 as substring.
It is a self number, because there is not a number n which added to its sum of digits gives 8987960673.
It is not an unprimeable number, because it can be changed into a prime (8987960693) 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 23 ways as a sum of consecutive naturals, for example, 710128 + ... + 722673.
It is an arithmetic number, because the mean of its divisors is an integer number (586732419).
Almost surely, 28987960673 is an apocalyptic number.
It is an amenable number.
8987960673 is a deficient number, since it is larger than the sum of its proper divisors (5093617383).
8987960673 is a wasteful number, since it uses less digits than its factorization.
8987960673 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 1432865 (or 1432862 counting only the distinct ones).
The product of its (nonzero) digits is 27433728, while the sum is 63.
The square root of 8987960673 is about 94804.8557458952. The cubic root of 8987960673 is about 2079.1558977092.
The spelling of 8987960673 in words is "eight billion, nine hundred eighty-seven million, nine hundred sixty thousand, six hundred seventy-three".
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