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24225 = 3521719
BaseRepresentation
bin101111010100001
31020020020
411322201
51233400
6304053
7130425
oct57241
936206
1024225
1117223
1212029
13b046
148b85
1572a0
hex5ea1

24225 has 24 divisors (see below), whose sum is σ = 44640. Its totient is φ = 11520.

The previous prime is 24223. The next prime is 24229. The reversal of 24225 is 52242.

It is not a de Polignac number, because 24225 - 21 = 24223 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (15).

It is not an unprimeable number, because it can be changed into a prime (24223) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 1266 + ... + 1284.

It is an arithmetic number, because the mean of its divisors is an integer number (1860).

224225 is an apocalyptic number.

24225 is a gapful number since it is divisible by the number (25) formed by its first and last digit.

It is an amenable number.

24225 is a deficient number, since it is larger than the sum of its proper divisors (20415).

24225 is a wasteful number, since it uses less digits than its factorization.

24225 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 49 (or 44 counting only the distinct ones).

The product of its digits is 160, while the sum is 15.

The square root of 24225 is about 155.6438241627. The cubic root of 24225 is about 28.9348517729.

Adding to 24225 its reverse (52242), we get a palindrome (76467).

The spelling of 24225 in words is "twenty-four thousand, two hundred twenty-five".

Divisors: 1 3 5 15 17 19 25 51 57 75 85 95 255 285 323 425 475 969 1275 1425 1615 4845 8075 24225