Search a number
-
+
1033112191 is a prime number
BaseRepresentation
bin111101100101000…
…000101001111111
32122222222112111111
4331211000221333
54103434042231
6250303102451
734413210616
oct7545005177
92588875444
101033112191
1149018a531
12249ba1a27
131360618b7
149b2ca87d
1560a724b1
hex3d940a7f

1033112191 has 2 divisors, whose sum is σ = 1033112192. Its totient is φ = 1033112190.

The previous prime is 1033112189. The next prime is 1033112221. The reversal of 1033112191 is 1912113301.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 1033112191 - 21 = 1033112189 is a prime.

Together with 1033112189, it forms a pair of twin primes.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1033112291) 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, 516556095 + 516556096.

It is an arithmetic number, because the mean of its divisors is an integer number (516556096).

Almost surely, 21033112191 is an apocalyptic number.

1033112191 is a deficient number, since it is larger than the sum of its proper divisors (1).

1033112191 is an equidigital number, since it uses as much as digits as its factorization.

1033112191 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 162, while the sum is 22.

The square root of 1033112191 is about 32142.0626438317. The cubic root of 1033112191 is about 1010.9177656037.

Adding to 1033112191 its reverse (1912113301), we get a palindrome (2945225492).

It can be divided in two parts, 10331 and 12191, that added together give a palindrome (22522).

The spelling of 1033112191 in words is "one billion, thirty-three million, one hundred twelve thousand, one hundred ninety-one".