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22424441 = 132132689
BaseRepresentation
bin101010110001…
…0101101111001
31120012021112212
41111202231321
521220040231
62120344505
7361414244
oct125425571
946167485
1022424441
11117268a6
127615135
134851b00
142d9a25b
151e7e42b
hex1562b79

22424441 has 6 divisors (see below), whose sum is σ = 24282270. Its totient is φ = 20699328.

The previous prime is 22424429. The next prime is 22424489. The reversal of 22424441 is 14442422.

It can be written as a sum of positive squares in 3 ways, for example, as 1948816 + 20475625 = 1396^2 + 4525^2 .

It is a de Polignac number, because none of the positive numbers 2k-22424441 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (22424491) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 66176 + ... + 66513.

It is an arithmetic number, because the mean of its divisors is an integer number (4047045).

Almost surely, 222424441 is an apocalyptic number.

It is an amenable number.

22424441 is a deficient number, since it is larger than the sum of its proper divisors (1857829).

22424441 is a wasteful number, since it uses less digits than its factorization.

22424441 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 132715 (or 132702 counting only the distinct ones).

The product of its digits is 2048, while the sum is 23.

The square root of 22424441 is about 4735.4451744266. The cubic root of 22424441 is about 281.9944376282.

Adding to 22424441 its reverse (14442422), we get a palindrome (36866863).

The spelling of 22424441 in words is "twenty-two million, four hundred twenty-four thousand, four hundred forty-one".

Divisors: 1 13 169 132689 1724957 22424441