Search a number
-
+
224251 is a prime number
BaseRepresentation
bin110110101111111011
3102101121121
4312233323
524134001
64450111
71622536
oct665773
9371547
10224251
11143535
12a9937
137b0c1
145ba1d
15466a1
hex36bfb

224251 has 2 divisors, whose sum is σ = 224252. Its totient is φ = 224250.

The previous prime is 224239. The next prime is 224261. The reversal of 224251 is 152422.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 224251 - 217 = 93179 is a prime.

It is a super-2 number, since 2×2242512 = 100577022002, which contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (224201) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 112125 + 112126.

It is an arithmetic number, because the mean of its divisors is an integer number (112126).

2224251 is an apocalyptic number.

224251 is the 300-th centered pentagonal number.

224251 is a deficient number, since it is larger than the sum of its proper divisors (1).

224251 is an equidigital number, since it uses as much as digits as its factorization.

224251 is an evil number, because the sum of its binary digits is even.

The product of its digits is 160, while the sum is 16.

The square root of 224251 is about 473.5514755547. The cubic root of 224251 is about 60.7544550126.

Adding to 224251 its reverse (152422), we get a palindrome (376673).

The spelling of 224251 in words is "two hundred twenty-four thousand, two hundred fifty-one".