Search a number
-
+
11832881 is a prime number
BaseRepresentation
bin101101001000…
…111000110001
3211021011122212
4231020320301
511012123011
61101341505
7202402124
oct55107061
924234585
1011832881
116752245
123b67895
1325b3c08
1418003bb
15108b08b
hexb48e31

11832881 has 2 divisors, whose sum is σ = 11832882. Its totient is φ = 11832880.

The previous prime is 11832851. The next prime is 11832883. The reversal of 11832881 is 18823811.

It is a happy number.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 11621281 + 211600 = 3409^2 + 460^2 .

It is a cyclic number.

It is not a de Polignac number, because 11832881 - 210 = 11831857 is a prime.

It is a super-2 number, since 2×118328812 = 280034145520322, which contains 22 as substring.

Together with 11832883, 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 (11832883) 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, 5916440 + 5916441.

It is an arithmetic number, because the mean of its divisors is an integer number (5916441).

Almost surely, 211832881 is an apocalyptic number.

It is an amenable number.

11832881 is a deficient number, since it is larger than the sum of its proper divisors (1).

11832881 is an equidigital number, since it uses as much as digits as its factorization.

11832881 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 3072, while the sum is 32.

The square root of 11832881 is about 3439.8954925986. The cubic root of 11832881 is about 227.8750790497.

The spelling of 11832881 in words is "eleven million, eight hundred thirty-two thousand, eight hundred eighty-one".