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2223825 = 352149199
BaseRepresentation
bin1000011110111011010001
311011222111220
420132323101
51032130300
6115355253
724621312
oct10367321
94158456
102223825
11128987a
128b2b29
135cb296
1441c609
152ddda0
hex21eed1

2223825 has 24 divisors (see below), whose sum is σ = 3720000. Its totient is φ = 1172160.

The previous prime is 2223773. The next prime is 2223829. The reversal of 2223825 is 5283222.

It is not a de Polignac number, because 2223825 - 26 = 2223761 is a prime.

It is an Ulam number.

It is a junction number, because it is equal to n+sod(n) for n = 2223795 and 2223804.

It is not an unprimeable number, because it can be changed into a prime (2223829) 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, 11076 + ... + 11274.

It is an arithmetic number, because the mean of its divisors is an integer number (155000).

22223825 is an apocalyptic number.

2223825 is a gapful number since it is divisible by the number (25) formed by its first and last digit.

It is an amenable number.

2223825 is a deficient number, since it is larger than the sum of its proper divisors (1496175).

2223825 is a wasteful number, since it uses less digits than its factorization.

2223825 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 361 (or 356 counting only the distinct ones).

The product of its digits is 1920, while the sum is 24.

The square root of 2223825 is about 1491.2494761106. The cubic root of 2223825 is about 130.5269538136.

The spelling of 2223825 in words is "two million, two hundred twenty-three thousand, eight hundred twenty-five".

Divisors: 1 3 5 15 25 75 149 199 447 597 745 995 2235 2985 3725 4975 11175 14925 29651 88953 148255 444765 741275 2223825