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222725 = 5259151
BaseRepresentation
bin110110011000000101
3102022112002
4312120011
524111400
64435045
71615226
oct663005
9368462
10222725
11142378
12a8a85
137a4b9
145b24d
1545ed5
hex36605

222725 has 12 divisors (see below), whose sum is σ = 282720. Its totient is φ = 174000.

The previous prime is 222713. The next prime is 222731. The reversal of 222725 is 527222.

It is not a de Polignac number, because 222725 - 212 = 218629 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 222697 and 222706.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 1400 + ... + 1550.

It is an arithmetic number, because the mean of its divisors is an integer number (23560).

2222725 is an apocalyptic number.

222725 is a gapful number since it is divisible by the number (25) formed by its first and last digit.

It is an amenable number.

222725 is a deficient number, since it is larger than the sum of its proper divisors (59995).

222725 is a wasteful number, since it uses less digits than its factorization.

222725 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 220 (or 215 counting only the distinct ones).

The product of its digits is 560, while the sum is 20.

The square root of 222725 is about 471.9374958615. The cubic root of 222725 is about 60.6163324130.

Adding to 222725 its reverse (527222), we get a palindrome (749947).

The spelling of 222725 in words is "two hundred twenty-two thousand, seven hundred twenty-five".

Divisors: 1 5 25 59 151 295 755 1475 3775 8909 44545 222725