Base | Representation |
---|---|
bin | 111111100001000… |
… | …0110000111110011 |
3 | 12111112100000022211 |
4 | 1333002012013303 |
5 | 13331100141140 |
6 | 551252112551 |
7 | 103546242514 |
oct | 17702060763 |
9 | 5445300284 |
10 | 2131255795 |
11 | 9a4047029 |
12 | 4b5905757 |
13 | 27c712606 |
14 | 1630a4a0b |
15 | c718d2ea |
hex | 7f0861f3 |
2131255795 has 8 divisors (see below), whose sum is σ = 2557946160. Its totient is φ = 1704711840.
The previous prime is 2131255793. The next prime is 2131255799. The reversal of 2131255795 is 5975521312.
It is a sphenic number, since it is the product of 3 distinct primes.
It is not a de Polignac number, because 2131255795 - 21 = 2131255793 is a prime.
It is not an unprimeable number, because it can be changed into a prime (2131255793) 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 7 ways as a sum of consecutive naturals, for example, 1516 + ... + 65305.
It is an arithmetic number, because the mean of its divisors is an integer number (319743270).
Almost surely, 22131255795 is an apocalyptic number.
2131255795 is a deficient number, since it is larger than the sum of its proper divisors (426690365).
2131255795 is an equidigital number, since it uses as much as digits as its factorization.
2131255795 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 73205.
The product of its digits is 94500, while the sum is 40.
The square root of 2131255795 is about 46165.5260448747. The cubic root of 2131255795 is about 1286.9011601645.
The spelling of 2131255795 in words is "two billion, one hundred thirty-one million, two hundred fifty-five thousand, seven hundred ninety-five".
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