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224312425 = 5225135747
BaseRepresentation
bin11010101111010…
…11110001101001
3120122002020210121
431113223301221
5424410444200
634131443241
75362424041
oct1527536151
9518066717
10224312425
11105689277
1263156521
133761a55c
1421b10721
1514a5ce1a
hexd5ebc69

224312425 has 12 divisors (see below), whose sum is σ = 279263376. Its totient is φ = 178730000.

The previous prime is 224312401. The next prime is 224312453. The reversal of 224312425 is 524213422.

It is not a de Polignac number, because 224312425 - 25 = 224312393 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (25).

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 224312425.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 11599 + ... + 24148.

It is an arithmetic number, because the mean of its divisors is an integer number (23271948).

Almost surely, 2224312425 is an apocalyptic number.

224312425 is a gapful number since it is divisible by the number (25) formed by its first and last digit.

It is an amenable number.

224312425 is a deficient number, since it is larger than the sum of its proper divisors (54950951).

224312425 is a wasteful number, since it uses less digits than its factorization.

224312425 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 36008 (or 36003 counting only the distinct ones).

The product of its digits is 3840, while the sum is 25.

The square root of 224312425 is about 14977.0632969217. The cubic root of 224312425 is about 607.6000162740.

Adding to 224312425 its reverse (524213422), we get a palindrome (748525847).

The spelling of 224312425 in words is "two hundred twenty-four million, three hundred twelve thousand, four hundred twenty-five".

Divisors: 1 5 25 251 1255 6275 35747 178735 893675 8972497 44862485 224312425