Base | Representation |
---|---|
bin | 10000001010110101… |
… | …11110001001101110 |
3 | 211101222121221202010 |
4 | 20011122332021232 |
5 | 120234302002430 |
6 | 3553221342050 |
7 | 425056233042 |
oct | 100532761156 |
9 | 24358557663 |
10 | 8680890990 |
11 | 3755155982 |
12 | 1823267926 |
13 | a846217b5 |
14 | 5c4caa022 |
15 | 35c195cb0 |
hex | 2056be26e |
8680890990 has 16 divisors (see below), whose sum is σ = 20834138448. Its totient is φ = 2314904256.
The previous prime is 8680890947. The next prime is 8680891003. The reversal of 8680890990 is 990980868.
8680890990 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.
It is a self number, because there is not a number n which added to its sum of digits gives 8680890990.
It is a congruent number.
It is an unprimeable number.
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 7 ways as a sum of consecutive naturals, for example, 144681487 + ... + 144681546.
It is an arithmetic number, because the mean of its divisors is an integer number (1302133653).
Almost surely, 28680890990 is an apocalyptic number.
8680890990 is an abundant number, since it is smaller than the sum of its proper divisors (12153247458).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
8680890990 is a wasteful number, since it uses less digits than its factorization.
8680890990 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 289363043.
The product of its (nonzero) digits is 2239488, while the sum is 57.
The square root of 8680890990 is about 93171.2991752288. The cubic root of 8680890990 is about 2055.2032003470.
The spelling of 8680890990 in words is "eight billion, six hundred eighty million, eight hundred ninety thousand, nine hundred ninety".
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