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224412121 = 17291792543
BaseRepresentation
bin11010110000001…
…00000111011001
3120122021022120001
431120010013121
5424422141441
634133533001
75363320513
oct1530040731
9518238501
10224412121
1110574716a
12631a4161
1337653a4b
1421b38bb3
1514a7c731
hexd6041d9

224412121 has 16 divisors (see below), whose sum is σ = 247276800. Its totient is φ = 202709248.

The previous prime is 224412109. The next prime is 224412137. The reversal of 224412121 is 121214422.

It is a cyclic number.

It is not a de Polignac number, because 224412121 - 211 = 224410073 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (224412151) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 86976 + ... + 89518.

It is an arithmetic number, because the mean of its divisors is an integer number (15454800).

Almost surely, 2224412121 is an apocalyptic number.

It is an amenable number.

224412121 is a deficient number, since it is larger than the sum of its proper divisors (22864679).

224412121 is a wasteful number, since it uses less digits than its factorization.

224412121 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2768.

The product of its digits is 256, while the sum is 19.

The square root of 224412121 is about 14980.3912165203. The cubic root of 224412121 is about 607.6900191932.

Adding to 224412121 its reverse (121214422), we get a palindrome (345626543).

It can be divided in two parts, 2244 and 12121, that added together give a triangular number (14365 = T169).

The spelling of 224412121 in words is "two hundred twenty-four million, four hundred twelve thousand, one hundred twenty-one".

Divisors: 1 17 29 179 493 2543 3043 5191 43231 73747 88247 455197 1253699 7738349 13200713 224412121