Base | Representation |
---|---|
bin | 111111000111110… |
… | …0010000101010100 |
3 | 12110121101121010202 |
4 | 1332033202011110 |
5 | 13314202012410 |
6 | 550100040032 |
7 | 103325465654 |
oct | 17617420524 |
9 | 5417347122 |
10 | 2118000980 |
11 | 997613537 |
12 | 4b1393018 |
13 | 279a51424 |
14 | 161414364 |
15 | c5e20ca5 |
hex | 7e3e2154 |
2118000980 has 24 divisors (see below), whose sum is σ = 4449587688. Its totient is φ = 846860288.
The previous prime is 2118000967. The next prime is 2118001013. The reversal of 2118000980 is 890008112.
It can be written as a sum of positive squares in 4 ways, for example, as 902641936 + 1215359044 = 30044^2 + 34862^2 .
It is a congruent number.
It is an unprimeable number.
It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 33212 + ... + 73068.
It is an arithmetic number, because the mean of its divisors is an integer number (185399487).
Almost surely, 22118000980 is an apocalyptic number.
2118000980 is a gapful number since it is divisible by the number (20) formed by its first and last digit.
It is an amenable number.
2118000980 is an abundant number, since it is smaller than the sum of its proper divisors (2331586708).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
2118000980 is a wasteful number, since it uses less digits than its factorization.
2118000980 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 42523 (or 42521 counting only the distinct ones).
The product of its (nonzero) digits is 1152, while the sum is 29.
The square root of 2118000980 is about 46021.7446431575. The cubic root of 2118000980 is about 1284.2277564621.
The spelling of 2118000980 in words is "two billion, one hundred eighteen million, nine hundred eighty", and thus it is an aban number.
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