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197225 = 527323
BaseRepresentation
bin110000001001101001
3101000112122
4300021221
522302400
64121025
71451000
oct601151
9330478
10197225
111251a6
1296175
136ba02
1451c37
153d685
hex30269

197225 has 24 divisors (see below), whose sum is σ = 297600. Its totient is φ = 129360.

The previous prime is 197221. The next prime is 197233. The reversal of 197225 is 522791.

It is not a de Polignac number, because 197225 - 22 = 197221 is a prime.

Its product of digits (1260) is a multiple of the sum of its prime divisors (35).

It is a junction number, because it is equal to n+sod(n) for n = 197194 and 197203.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (197221) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 8564 + ... + 8586.

It is an arithmetic number, because the mean of its divisors is an integer number (12400).

2197225 is an apocalyptic number.

It is an amenable number.

197225 is a deficient number, since it is larger than the sum of its proper divisors (100375).

197225 is an equidigital number, since it uses as much as digits as its factorization.

197225 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 54 (or 35 counting only the distinct ones).

The product of its digits is 1260, while the sum is 26.

The square root of 197225 is about 444.1002139157. The cubic root of 197225 is about 58.2086224594.

The spelling of 197225 in words is "one hundred ninety-seven thousand, two hundred twenty-five".

Divisors: 1 5 7 23 25 35 49 115 161 175 245 343 575 805 1127 1225 1715 4025 5635 7889 8575 28175 39445 197225