Base | Representation |
---|---|
bin | 111111110000101… |
… | …0111010111001011 |
3 | 12112002202110121101 |
4 | 1333201113113023 |
5 | 13340144443000 |
6 | 552143522231 |
7 | 104006022640 |
oct | 17741272713 |
9 | 5462673541 |
10 | 2139452875 |
11 | 9a873567a |
12 | 4b85b9377 |
13 | 281322661 |
14 | 1641d9dc7 |
15 | c7c5be6a |
hex | 7f8575cb |
2139452875 has 16 divisors (see below), whose sum is σ = 3051472320. Its totient is φ = 1467052800.
The previous prime is 2139452827. The next prime is 2139452921. The reversal of 2139452875 is 5782549312.
It is not a de Polignac number, because 2139452875 - 211 = 2139450827 is a prime.
It is an unprimeable number.
It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1221670 + ... + 1223419.
It is an arithmetic number, because the mean of its divisors is an integer number (190717020).
Almost surely, 22139452875 is an apocalyptic number.
2139452875 is a gapful number since it is divisible by the number (25) formed by its first and last digit.
2139452875 is a deficient number, since it is larger than the sum of its proper divisors (912019445).
2139452875 is an equidigital number, since it uses as much as digits as its factorization.
2139452875 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 2445111 (or 2445101 counting only the distinct ones).
The product of its digits is 604800, while the sum is 46.
The square root of 2139452875 is about 46254.2200777399. The cubic root of 2139452875 is about 1288.5489111543.
The spelling of 2139452875 in words is "two billion, one hundred thirty-nine million, four hundred fifty-two thousand, eight hundred seventy-five".
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