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224011481 is a prime number
BaseRepresentation
bin11010101101000…
…10010011011001
3120121111221222112
431112202103121
5424321331411
634121202105
75360031461
oct1526422331
9517457875
10224011481
111054a3161
1263030335
1337543595
1421a72ba1
15149edb8b
hexd5a24d9

224011481 has 2 divisors, whose sum is σ = 224011482. Its totient is φ = 224011480.

The previous prime is 224011393. The next prime is 224011483. The reversal of 224011481 is 184110422.

224011481 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 144961600 + 79049881 = 12040^2 + 8891^2 .

It is a cyclic number.

It is not a de Polignac number, because 224011481 - 214 = 223995097 is a prime.

It is a super-2 number, since 2×2240114812 = 100362287239626722, which contains 22 as substring.

It is a Sophie Germain prime.

Together with 224011483, it forms a pair of twin primes.

It is a Chen prime.

It is a Curzon number.

It is not a weakly prime, because it can be changed into another prime (224011483) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 112005740 + 112005741.

It is an arithmetic number, because the mean of its divisors is an integer number (112005741).

Almost surely, 2224011481 is an apocalyptic number.

It is an amenable number.

224011481 is a deficient number, since it is larger than the sum of its proper divisors (1).

224011481 is an equidigital number, since it uses as much as digits as its factorization.

224011481 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 512, while the sum is 23.

The square root of 224011481 is about 14967.0130954710. The cubic root of 224011481 is about 607.3281701139.

The spelling of 224011481 in words is "two hundred twenty-four million, eleven thousand, four hundred eighty-one".