Base | Representation |
---|---|
bin | 111001110000… |
… | …100100000001 |
3 | 1001111020201021 |
4 | 321300210001 |
5 | 12334003441 |
6 | 1300305441 |
7 | 242461132 |
oct | 71604401 |
9 | 31436637 |
10 | 15141121 |
11 | 8601826 |
12 | 50a2281 |
13 | 31a1958 |
14 | 2021c89 |
15 | 14e13d1 |
hex | e70901 |
15141121 has 2 divisors, whose sum is σ = 15141122. Its totient is φ = 15141120.
The previous prime is 15141089. The next prime is 15141151. The reversal of 15141121 is 12114151.
It is a strong prime.
It can be written as a sum of positive squares in only one way, i.e., 10010896 + 5130225 = 3164^2 + 2265^2 .
It is a cyclic number.
It is not a de Polignac number, because 15141121 - 25 = 15141089 is a prime.
It is a junction number, because it is equal to n+sod(n) for n = 15141095 and 15141104.
It is not a weakly prime, because it can be changed into another prime (15141151) by changing a digit.
It is a polite number, since it can be written as a sum of consecutive naturals, namely, 7570560 + 7570561.
It is an arithmetic number, because the mean of its divisors is an integer number (7570561).
Almost surely, 215141121 is an apocalyptic number.
It is an amenable number.
15141121 is a deficient number, since it is larger than the sum of its proper divisors (1).
15141121 is an equidigital number, since it uses as much as digits as its factorization.
15141121 is an odious number, because the sum of its binary digits is odd.
The product of its digits is 40, while the sum is 16.
The square root of 15141121 is about 3891.1593388089. The cubic root of 15141121 is about 247.3922041884.
Adding to 15141121 its reverse (12114151), we get a palindrome (27255272).
The spelling of 15141121 in words is "fifteen million, one hundred forty-one thousand, one hundred twenty-one".
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