Search a number
-
+
230544533 is a prime number
BaseRepresentation
bin11011011110111…
…01010010010101
3121001210212122102
431233131102111
5433004411113
634513211445
75466411332
oct1557352225
9531725572
10230544533
1110915557a
1265260b85
13389c00ab
1422893989
151538e758
hexdbdd495

230544533 has 2 divisors, whose sum is σ = 230544534. Its totient is φ = 230544532.

The previous prime is 230544527. The next prime is 230544539. The reversal of 230544533 is 335445032.

It is a balanced prime because it is at equal distance from previous prime (230544527) and next prime (230544539).

It can be written as a sum of positive squares in only one way, i.e., 171531409 + 59013124 = 13097^2 + 7682^2 .

It is a cyclic number.

It is not a de Polignac number, because 230544533 - 26 = 230544469 is a prime.

It is equal to p12670823 and since 230544533 and 12670823 have the same sum of digits, it is a Honaker prime.

It is a junction number, because it is equal to n+sod(n) for n = 230544496 and 230544505.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (230544539) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 115272266 + 115272267.

It is an arithmetic number, because the mean of its divisors is an integer number (115272267).

Almost surely, 2230544533 is an apocalyptic number.

It is an amenable number.

230544533 is a deficient number, since it is larger than the sum of its proper divisors (1).

230544533 is an equidigital number, since it uses as much as digits as its factorization.

230544533 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 21600, while the sum is 29.

The square root of 230544533 is about 15183.6929961061. The cubic root of 230544533 is about 613.1757100925.

Adding to 230544533 its reverse (335445032), we get a palindrome (565989565).

The spelling of 230544533 in words is "two hundred thirty million, five hundred forty-four thousand, five hundred thirty-three".