Base | Representation |
---|---|
bin | 111111010101010… |
… | …0111100001011001 |
3 | 12111002202022201211 |
4 | 1332222213201121 |
5 | 13323011214040 |
6 | 550512143121 |
7 | 103443030106 |
oct | 17652474131 |
9 | 5432668654 |
10 | 2125101145 |
11 | 9a0622a42 |
12 | 4b3837aa1 |
13 | 27b3690cb |
14 | 162341aad |
15 | c68748ea |
hex | 7eaa7859 |
2125101145 has 8 divisors (see below), whose sum is σ = 2552819904. Its totient is φ = 1698281904.
The previous prime is 2125101137. The next prime is 2125101203. The reversal of 2125101145 is 5411015212.
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 2125101145 - 23 = 2125101137 is a prime.
It is a super-2 number, since 2×21251011452 = 9032109752960622050, which contains 22 as substring.
It is a Duffinian 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, 219669 + ... + 229138.
It is an arithmetic number, because the mean of its divisors is an integer number (319102488).
Almost surely, 22125101145 is an apocalyptic number.
It is an amenable number.
2125101145 is a deficient number, since it is larger than the sum of its proper divisors (427718759).
2125101145 is an equidigital number, since it uses as much as digits as its factorization.
2125101145 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 449759.
The product of its (nonzero) digits is 400, while the sum is 22.
The square root of 2125101145 is about 46098.8193449680. The cubic root of 2125101145 is about 1285.6611928311.
Adding to 2125101145 its reverse (5411015212), we get a palindrome (7536116357).
The spelling of 2125101145 in words is "two billion, one hundred twenty-five million, one hundred one thousand, one hundred forty-five".
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