Search a number
-
+
8033281 is a prime number
BaseRepresentation
bin11110101001010000000001
3120010010120221
4132221100001
54024031111
6444103041
7125165434
oct36512001
916103527
108033281
114597583
122834a81
131883629
1410d181b
15a8a371
hex7a9401

8033281 has 2 divisors, whose sum is σ = 8033282. Its totient is φ = 8033280.

The previous prime is 8033243. The next prime is 8033293. The reversal of 8033281 is 1823308.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 6330256 + 1703025 = 2516^2 + 1305^2 .

It is a cyclic number.

It is not a de Polignac number, because 8033281 - 29 = 8032769 is a prime.

It is a super-2 number, since 2×80332812 = 129067207249922, which contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (8013281) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 4016640 + 4016641.

It is an arithmetic number, because the mean of its divisors is an integer number (4016641).

Almost surely, 28033281 is an apocalyptic number.

It is an amenable number.

8033281 is a deficient number, since it is larger than the sum of its proper divisors (1).

8033281 is an equidigital number, since it uses as much as digits as its factorization.

8033281 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 1152, while the sum is 25.

The square root of 8033281 is about 2834.3043238156. The cubic root of 8033281 is about 200.2769579611.

Adding to 8033281 its reverse (1823308), we get a palindrome (9856589).

The spelling of 8033281 in words is "eight million, thirty-three thousand, two hundred eighty-one".