[go: up one dir, main page]

Search a number
-
+
7072841 is a prime number
BaseRepresentation
bin11010111110110001001001
3111022100010002
4122332301021
53302312331
6411332345
7114055346
oct32766111
914270102
107072841
113aa0a26
1224510b5
131608419
14d217cd
1594a9cb
hex6bec49

7072841 has 2 divisors, whose sum is σ = 7072842. Its totient is φ = 7072840.

The previous prime is 7072831. The next prime is 7072853. The reversal of 7072841 is 1482707.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 4579600 + 2493241 = 2140^2 + 1579^2 .

It is an emirp because it is prime and its reverse (1482707) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 7072841 - 26 = 7072777 is a prime.

It is a super-2 number, since 2×70728412 = 100050159622562, which contains 22 as substring.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (7072801) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3536420 + 3536421.

It is an arithmetic number, because the mean of its divisors is an integer number (3536421).

Almost surely, 27072841 is an apocalyptic number.

It is an amenable number.

7072841 is a deficient number, since it is larger than the sum of its proper divisors (1).

7072841 is an equidigital number, since it uses as much as digits as its factorization.

7072841 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 3136, while the sum is 29.

The square root of 7072841 is about 2659.4813404121. The cubic root of 7072841 is about 191.9543529361.

The spelling of 7072841 in words is "seven million, seventy-two thousand, eight hundred forty-one".