Base | Representation |
---|---|
bin | 111111110101110… |
… | …0001010110000101 |
3 | 12112021202201122012 |
4 | 1333223201112011 |
5 | 13341340141310 |
6 | 552320544005 |
7 | 104040451556 |
oct | 17753412605 |
9 | 5467681565 |
10 | 2142115205 |
11 | 9aa19394a |
12 | 4b9482005 |
13 | 281a453b9 |
14 | 1646d032d |
15 | c80d5c05 |
hex | 7fae1585 |
2142115205 has 8 divisors (see below), whose sum is σ = 2595495552. Its totient is φ = 1697053968.
The previous prime is 2142115181. The next prime is 2142115229. The reversal of 2142115205 is 5025112412.
It is an interprime number because it is at equal distance from previous prime (2142115181) and next prime (2142115229).
It is a sphenic number, since it is the product of 3 distinct primes.
It is a cyclic number.
It is not a de Polignac number, because 2142115205 - 210 = 2142114181 is a prime.
It is a Duffinian number.
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, 2079209 + ... + 2080238.
It is an arithmetic number, because the mean of its divisors is an integer number (324436944).
Almost surely, 22142115205 is an apocalyptic number.
It is an amenable number.
2142115205 is a deficient number, since it is larger than the sum of its proper divisors (453380347).
2142115205 is a wasteful number, since it uses less digits than its factorization.
2142115205 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 4159555.
The product of its (nonzero) digits is 800, while the sum is 23.
The square root of 2142115205 is about 46282.9904500563. The cubic root of 2142115205 is about 1289.0831786547.
Adding to 2142115205 its reverse (5025112412), we get a palindrome (7167227617).
The spelling of 2142115205 in words is "two billion, one hundred forty-two million, one hundred fifteen thousand, two hundred five".
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