Search a number
-
+
81112363 is a prime number
BaseRepresentation
bin1001101010110…
…10110100101011
312122121221020121
410311122310223
5131231043423
612014304111
72003305123
oct465326453
9178557217
1081112363
1141870a12
12231b8037
1313a5c7a7
14aab5c83
1571c345d
hex4d5ad2b

81112363 has 2 divisors, whose sum is σ = 81112364. Its totient is φ = 81112362.

The previous prime is 81112327. The next prime is 81112379. The reversal of 81112363 is 36321118.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 81112363 - 213 = 81104171 is a prime.

It is not a weakly prime, because it can be changed into another prime (81112963) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 40556181 + 40556182.

It is an arithmetic number, because the mean of its divisors is an integer number (40556182).

Almost surely, 281112363 is an apocalyptic number.

81112363 is a deficient number, since it is larger than the sum of its proper divisors (1).

81112363 is an equidigital number, since it uses as much as digits as its factorization.

81112363 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 864, while the sum is 25.

The square root of 81112363 is about 9006.2402255325. The cubic root of 81112363 is about 432.8748471562.

The spelling of 81112363 in words is "eighty-one million, one hundred twelve thousand, three hundred sixty-three".