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30822481 is a prime number
BaseRepresentation
bin111010110010…
…1000001010001
32010222221111101
41311211001101
530342304411
63020344401
7522662314
oct165450121
963887441
1030822481
1116442428
12a3a5101
136502471
14414497b
152a8c8c1
hex1d65051

30822481 has 2 divisors, whose sum is σ = 30822482. Its totient is φ = 30822480.

The previous prime is 30822439. The next prime is 30822487. The reversal of 30822481 is 18422803.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 30074256 + 748225 = 5484^2 + 865^2 .

It is a cyclic number.

It is not a de Polignac number, because 30822481 - 215 = 30789713 is a prime.

It is a super-2 number, since 2×308224812 = 1900050669990722, which contains 22 as substring.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (30822487) 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, 15411240 + 15411241.

It is an arithmetic number, because the mean of its divisors is an integer number (15411241).

Almost surely, 230822481 is an apocalyptic number.

It is an amenable number.

30822481 is a deficient number, since it is larger than the sum of its proper divisors (1).

30822481 is an equidigital number, since it uses as much as digits as its factorization.

30822481 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 3072, while the sum is 28.

The square root of 30822481 is about 5551.7997982636. The cubic root of 30822481 is about 313.5372882430.

The spelling of 30822481 in words is "thirty million, eight hundred twenty-two thousand, four hundred eighty-one".