Base | Representation |
---|---|
bin | 11100001100000011011001 |
3 | 111220102100112 |
4 | 130030003121 |
5 | 3342430101 |
6 | 422214105 |
7 | 116544305 |
oct | 34140331 |
9 | 14812315 |
10 | 7389401 |
11 | 4197848 |
12 | 2584335 |
13 | 16b9536 |
14 | da4d05 |
15 | 9ae6bb |
hex | 70c0d9 |
7389401 has 2 divisors, whose sum is σ = 7389402. Its totient is φ = 7389400.
The previous prime is 7389397. The next prime is 7389433. The reversal of 7389401 is 1049837.
It is an a-pointer prime, because the next prime (7389433) can be obtained adding 7389401 to its sum of digits (32).
It is a weak prime.
It can be written as a sum of positive squares in only one way, i.e., 5569600 + 1819801 = 2360^2 + 1349^2 .
It is an emirp because it is prime and its reverse (1049837) is a distict prime.
It is a cyclic number.
It is not a de Polignac number, because 7389401 - 22 = 7389397 is a prime.
It is not a weakly prime, because it can be changed into another prime (7389451) by changing a digit.
It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3694700 + 3694701.
It is an arithmetic number, because the mean of its divisors is an integer number (3694701).
Almost surely, 27389401 is an apocalyptic number.
It is an amenable number.
7389401 is a deficient number, since it is larger than the sum of its proper divisors (1).
7389401 is an equidigital number, since it uses as much as digits as its factorization.
7389401 is an evil number, because the sum of its binary digits is even.
The product of its (nonzero) digits is 6048, while the sum is 32.
The square root of 7389401 is about 2718.3452687251. The cubic root of 7389401 is about 194.7764345561.
The spelling of 7389401 in words is "seven million, three hundred eighty-nine thousand, four hundred one".
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