Base | Representation |
---|---|
bin | 111110101101… |
… | …1010111111001 |
3 | 2021212111001021 |
4 | 1331123113321 |
5 | 31404130441 |
6 | 3132422441 |
7 | 546322261 |
oct | 175332771 |
9 | 67774037 |
10 | 32880121 |
11 | 1761835a |
12 | b017a21 |
13 | 6a72bc1 |
14 | 451c7a1 |
15 | 2d473d1 |
hex | 1f5b5f9 |
32880121 has 2 divisors, whose sum is σ = 32880122. Its totient is φ = 32880120.
The previous prime is 32880053. The next prime is 32880131. The reversal of 32880121 is 12108823.
It is a strong prime.
It can be written as a sum of positive squares in only one way, i.e., 23145721 + 9734400 = 4811^2 + 3120^2 .
It is an emirp because it is prime and its reverse (12108823) is a distict prime.
It is a cyclic number.
It is not a de Polignac number, because 32880121 - 219 = 32355833 is a prime.
It is a super-2 number, since 2×328801212 = 2162204713949282, which contains 22 as substring.
It is not a weakly prime, because it can be changed into another prime (32880131) by changing a digit.
It is a polite number, since it can be written as a sum of consecutive naturals, namely, 16440060 + 16440061.
It is an arithmetic number, because the mean of its divisors is an integer number (16440061).
Almost surely, 232880121 is an apocalyptic number.
It is an amenable number.
32880121 is a deficient number, since it is larger than the sum of its proper divisors (1).
32880121 is an equidigital number, since it uses as much as digits as its factorization.
32880121 is an evil number, because the sum of its binary digits is even.
The product of its (nonzero) digits is 768, while the sum is 25.
The square root of 32880121 is about 5734.1190256220. The cubic root of 32880121 is about 320.3645617269.
Adding to 32880121 its reverse (12108823), we get a palindrome (44988944).
The spelling of 32880121 in words is "thirty-two million, eight hundred eighty thousand, one hundred twenty-one".
• e-mail: info -at- numbersaplenty.com • Privacy notice • done in 0.072 sec. • engine limits •