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223825 = 5271279
BaseRepresentation
bin110110101001010001
3102101000211
4312221101
524130300
64444121
71621360
oct665121
9371024
10223825
11143188
12a9641
137ab54
145b7d7
15464ba
hex36a51

223825 has 12 divisors (see below), whose sum is σ = 317440. Its totient is φ = 153360.

The previous prime is 223823. The next prime is 223829. The reversal of 223825 is 528322.

223825 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 223825 - 21 = 223823 is a prime.

It is a nialpdrome in base 12.

It is a junction number, because it is equal to n+sod(n) for n = 223796 and 223805.

It is not an unprimeable number, because it can be changed into a prime (223823) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 465 + ... + 814.

2223825 is an apocalyptic number.

223825 is a gapful number since it is divisible by the number (25) formed by its first and last digit.

It is an amenable number.

223825 is a deficient number, since it is larger than the sum of its proper divisors (93615).

223825 is a wasteful number, since it uses less digits than its factorization.

223825 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1296 (or 1291 counting only the distinct ones).

The product of its digits is 960, while the sum is 22.

The square root of 223825 is about 473.1014690318. The cubic root of 223825 is about 60.7159597495.

Adding to 223825 its product of digits (960), we get a triangular number (224785 = T670).

The spelling of 223825 in words is "two hundred twenty-three thousand, eight hundred twenty-five".

Divisors: 1 5 7 25 35 175 1279 6395 8953 31975 44765 223825