Base | Representation |
---|---|
bin | 111111001011110… |
… | …0111011110001001 |
3 | 12110202101021011102 |
4 | 1332113213132021 |
5 | 13320222321301 |
6 | 550213311145 |
7 | 103352503313 |
oct | 17627473611 |
9 | 5422337142 |
10 | 2120120201 |
11 | 998830761 |
12 | 4b20354b5 |
13 | 27a313bc4 |
14 | 1618067b3 |
15 | c61ddb6b |
hex | 7e5e7789 |
2120120201 has 8 divisors (see below), whose sum is σ = 2245660200. Its totient is φ = 1994672128.
The previous prime is 2120120183. The next prime is 2120120237. The reversal of 2120120201 is 1020210212.
It is a happy number.
It can be written as a sum of positive squares in 4 ways, for example, as 592873801 + 1527246400 = 24349^2 + 39080^2 .
It is a sphenic number, since it is the product of 3 distinct primes.
It is a cyclic number.
It is a de Polignac number, because none of the positive numbers 2k-2120120201 is a prime.
It is a Duffinian number.
It is not an unprimeable number, because it can be changed into a prime (2120120801) by changing a digit.
It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 27725 + ... + 70773.
It is an arithmetic number, because the mean of its divisors is an integer number (280707525).
Almost surely, 22120120201 is an apocalyptic number.
It is an amenable number.
2120120201 is a deficient number, since it is larger than the sum of its proper divisors (125539999).
2120120201 is a wasteful number, since it uses less digits than its factorization.
2120120201 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 45963.
The product of its (nonzero) digits is 16, while the sum is 11.
The square root of 2120120201 is about 46044.7630138325. The cubic root of 2120120201 is about 1284.6559361860.
Adding to 2120120201 its reverse (1020210212), we get a palindrome (3140330413).
The spelling of 2120120201 in words is "two billion, one hundred twenty million, one hundred twenty thousand, two hundred one".
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