Base | Representation |
---|---|
bin | 11100100010100000111001 |
3 | 112002002112221 |
4 | 130202200321 |
5 | 3403401101 |
6 | 424204041 |
7 | 120406444 |
oct | 34424071 |
9 | 15062487 |
10 | 7481401 |
11 | 424a984 |
12 | 2609621 |
13 | 171c385 |
14 | dca65b |
15 | 9cbaa1 |
hex | 722839 |
7481401 has 2 divisors, whose sum is σ = 7481402. Its totient is φ = 7481400.
The previous prime is 7481389. The next prime is 7481407. The reversal of 7481401 is 1041847.
It is a strong prime.
It can be written as a sum of positive squares in only one way, i.e., 5645376 + 1836025 = 2376^2 + 1355^2 .
It is a cyclic number.
It is not a de Polignac number, because 7481401 - 213 = 7473209 is a prime.
It is not a weakly prime, because it can be changed into another prime (7481407) by changing a digit.
It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3740700 + 3740701.
It is an arithmetic number, because the mean of its divisors is an integer number (3740701).
Almost surely, 27481401 is an apocalyptic number.
It is an amenable number.
7481401 is a deficient number, since it is larger than the sum of its proper divisors (1).
7481401 is an equidigital number, since it uses as much as digits as its factorization.
7481401 is an evil number, because the sum of its binary digits is even.
The product of its (nonzero) digits is 896, while the sum is 25.
The square root of 7481401 is about 2735.2149824100. The cubic root of 7481401 is about 195.5814422921.
The spelling of 7481401 in words is "seven million, four hundred eighty-one thousand, four hundred one".
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