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24224121 = 3213811949
BaseRepresentation
bin101110001101…
…0000101111001
31200120201020200
41130122011321
522200132441
62223112413
7412621155
oct134320571
950521220
1024224121
1112745a39
128142709
135031ccc
143308065
1521d77b6
hex171a179

24224121 has 12 divisors (see below), whose sum is σ = 35033700. Its totient is φ = 16129440.

The previous prime is 24224119. The next prime is 24224219. The reversal of 24224121 is 12142242.

It can be written as a sum of positive squares in 2 ways, for example, as 15492096 + 8732025 = 3936^2 + 2955^2 .

It is not a de Polignac number, because 24224121 - 21 = 24224119 is a prime.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 24224094 and 24224103.

It is not an unprimeable number, because it can be changed into a prime (24224111) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 11455 + ... + 13403.

It is an arithmetic number, because the mean of its divisors is an integer number (2919475).

Almost surely, 224224121 is an apocalyptic number.

It is an amenable number.

24224121 is a deficient number, since it is larger than the sum of its proper divisors (10809579).

24224121 is a wasteful number, since it uses less digits than its factorization.

24224121 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3336 (or 3333 counting only the distinct ones).

The product of its digits is 256, while the sum is 18.

The square root of 24224121 is about 4921.8005851517. The cubic root of 24224121 is about 289.3450180333.

Adding to 24224121 its reverse (12142242), we get a palindrome (36366363).

The spelling of 24224121 in words is "twenty-four million, two hundred twenty-four thousand, one hundred twenty-one".

Divisors: 1 3 9 1381 1949 4143 5847 12429 17541 2691569 8074707 24224121