Base | Representation |
---|---|
bin | 111111101111111… |
… | …1111111111101000 |
3 | 12112002002021201100 |
4 | 1333133333333220 |
5 | 13340102020031 |
6 | 552132121400 |
7 | 104003002422 |
oct | 17737777750 |
9 | 5462067640 |
10 | 2139095016 |
11 | 9a8510823 |
12 | 4b8466260 |
13 | 2812287c6 |
14 | 164145812 |
15 | c7bdade6 |
hex | 7f7fffe8 |
2139095016 has 24 divisors (see below), whose sum is σ = 5793382530. Its totient is φ = 713031648.
The previous prime is 2139095011. The next prime is 2139095017. The reversal of 2139095016 is 6105909312.
It can be written as a sum of positive squares in only one way, i.e., 1413008100 + 726086916 = 37590^2 + 26946^2 .
It is a tau number, because it is divible by the number of its divisors (24).
It is a Harshad number since it is a multiple of its sum of digits (36).
It is not an unprimeable number, because it can be changed into a prime (2139095011) by changing a digit.
It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 14854755 + ... + 14854898.
Almost surely, 22139095016 is an apocalyptic number.
It is an amenable number.
2139095016 is an abundant number, since it is smaller than the sum of its proper divisors (3654287514).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
2139095016 is a wasteful number, since it uses less digits than its factorization.
2139095016 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 29709665 (or 29709658 counting only the distinct ones).
The product of its (nonzero) digits is 14580, while the sum is 36.
The square root of 2139095016 is about 46250.3515229884. The cubic root of 2139095016 is about 1288.4770634182.
The spelling of 2139095016 in words is "two billion, one hundred thirty-nine million, ninety-five thousand, sixteen".
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