Base | Representation |
---|---|
bin | 11100011101100100000001 |
3 | 112001001201211 |
4 | 130131210001 |
5 | 3402223441 |
6 | 423530121 |
7 | 120263353 |
oct | 34354401 |
9 | 15031654 |
10 | 7461121 |
11 | 4236718 |
12 | 25b9941 |
13 | 1713085 |
14 | dc30d3 |
15 | 9c5a81 |
hex | 71d901 |
7461121 has 2 divisors, whose sum is σ = 7461122. Its totient is φ = 7461120.
The previous prime is 7461101. The next prime is 7461127. The reversal of 7461121 is 1211647.
It is a strong prime.
It can be written as a sum of positive squares in only one way, i.e., 7230721 + 230400 = 2689^2 + 480^2 .
It is an emirp because it is prime and its reverse (1211647) is a distict prime.
It is a cyclic number.
It is not a de Polignac number, because 7461121 - 25 = 7461089 is a prime.
It is a junction number, because it is equal to n+sod(n) for n = 7461092 and 7461101.
It is not a weakly prime, because it can be changed into another prime (7461127) by changing a digit.
It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3730560 + 3730561.
It is an arithmetic number, because the mean of its divisors is an integer number (3730561).
Almost surely, 27461121 is an apocalyptic number.
It is an amenable number.
7461121 is a deficient number, since it is larger than the sum of its proper divisors (1).
7461121 is an equidigital number, since it uses as much as digits as its factorization.
7461121 is an evil number, because the sum of its binary digits is even.
The product of its digits is 336, while the sum is 22.
The square root of 7461121 is about 2731.5052626711. The cubic root of 7461121 is about 195.4045600484.
Adding to 7461121 its reverse (1211647), we get a palindrome (8672768).
The spelling of 7461121 in words is "seven million, four hundred sixty-one thousand, one hundred twenty-one".
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