Search a number
-
+
73024681 is a prime number
BaseRepresentation
bin1000101101001…
…00010010101001
312002102001000211
410112210102221
5122143242211
611125101121
71544461642
oct426442251
9162361024
1073024681
1138247584
12205577a1
131218a492
1499ac6c9
156626e21
hex45a44a9

73024681 has 2 divisors, whose sum is σ = 73024682. Its totient is φ = 73024680.

The previous prime is 73024669. The next prime is 73024709. The reversal of 73024681 is 18642037.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 72590400 + 434281 = 8520^2 + 659^2 .

It is an emirp because it is prime and its reverse (18642037) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 73024681 - 221 = 70927529 is a prime.

It is a super-2 number, since 2×730246812 = 10665208070303522, which contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (73024481) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 36512340 + 36512341.

It is an arithmetic number, because the mean of its divisors is an integer number (36512341).

Almost surely, 273024681 is an apocalyptic number.

It is an amenable number.

73024681 is a deficient number, since it is larger than the sum of its proper divisors (1).

73024681 is an equidigital number, since it uses as much as digits as its factorization.

73024681 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 8064, while the sum is 31.

The square root of 73024681 is about 8545.4479695333. The cubic root of 73024681 is about 417.9810149112.

The spelling of 73024681 in words is "seventy-three million, twenty-four thousand, six hundred eighty-one".