Base | Representation |
---|---|
bin | 111111110101111… |
… | …1111110100000101 |
3 | 12112022000001211102 |
4 | 1333223333310011 |
5 | 13341403140010 |
6 | 552323345445 |
7 | 104041511453 |
oct | 17753776405 |
9 | 5468001742 |
10 | 2142240005 |
11 | 9aa269694 |
12 | 4b9522285 |
13 | 281a8a149 |
14 | 1647239d3 |
15 | c810cba5 |
hex | 7faffd05 |
2142240005 has 16 divisors (see below), whose sum is σ = 2721185280. Its totient is φ = 1616209728.
The previous prime is 2142239993. The next prime is 2142240011. The reversal of 2142240005 is 5000422412.
It is a happy number.
It is a cyclic number.
It is not a de Polignac number, because 2142240005 - 214 = 2142223621 is a prime.
It is a congruent number.
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, 165557 + ... + 178026.
It is an arithmetic number, because the mean of its divisors is an integer number (170074080).
Almost surely, 22142240005 is an apocalyptic number.
It is an amenable number.
2142240005 is a deficient number, since it is larger than the sum of its proper divisors (578945275).
2142240005 is a wasteful number, since it uses less digits than its factorization.
2142240005 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 343660.
The product of its (nonzero) digits is 640, while the sum is 20.
The square root of 2142240005 is about 46284.3386579089. The cubic root of 2142240005 is about 1289.1082122378.
Adding to 2142240005 its reverse (5000422412), we get a palindrome (7142662417).
The spelling of 2142240005 in words is "two billion, one hundred forty-two million, two hundred forty thousand, five".
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