Search a number
-
+
32104434449 is a prime number
BaseRepresentation
bin11101111001100100…
…101100101100010001
310001212102011020201202
4131321210230230101
51011222213400244
622425405240545
72214402122153
oct357144545421
9101772136652
1032104434449
111268513085a
12627b863155
133048376499
1417a7b2aad3
15c7d76a04e
hex77992cb11

32104434449 has 2 divisors, whose sum is σ = 32104434450. Its totient is φ = 32104434448.

The previous prime is 32104434413. The next prime is 32104434451. The reversal of 32104434449 is 94443440123.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 19752334849 + 12352099600 = 140543^2 + 111140^2 .

It is an emirp because it is prime and its reverse (94443440123) is a distict prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2k-32104434449 is a prime.

It is a super-2 number, since 2×321044344492 (a number of 22 digits) contains 22 as substring.

Together with 32104434451, it forms a pair of twin primes.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (32104434049) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 16052217224 + 16052217225.

It is an arithmetic number, because the mean of its divisors is an integer number (16052217225).

Almost surely, 232104434449 is an apocalyptic number.

It is an amenable number.

32104434449 is a deficient number, since it is larger than the sum of its proper divisors (1).

32104434449 is an equidigital number, since it uses as much as digits as its factorization.

32104434449 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 165888, while the sum is 38.

The spelling of 32104434449 in words is "thirty-two billion, one hundred four million, four hundred thirty-four thousand, four hundred forty-nine".