Search a number
-
+
197288 = 23713271
BaseRepresentation
bin110000001010101000
3101000121222
4300022220
522303123
64121212
71451120
oct601250
9330558
10197288
11125253
1296208
136ba50
1451c80
153d6c8
hex302a8

197288 has 32 divisors (see below), whose sum is σ = 456960. Its totient is φ = 77760.

The previous prime is 197279. The next prime is 197293. The reversal of 197288 is 882791.

It is a happy number.

197288 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is a congruent number.

It is an unprimeable number.

197288 is an untouchable number, because it is not equal to the sum of proper divisors of any number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 593 + ... + 863.

It is an arithmetic number, because the mean of its divisors is an integer number (14280).

2197288 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 197288, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (228480).

197288 is an abundant number, since it is smaller than the sum of its proper divisors (259672).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

197288 is a wasteful number, since it uses less digits than its factorization.

197288 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 297 (or 293 counting only the distinct ones).

The product of its digits is 8064, while the sum is 35.

The square root of 197288 is about 444.1711381889. The cubic root of 197288 is about 58.2148197008.

The spelling of 197288 in words is "one hundred ninety-seven thousand, two hundred eighty-eight".

Divisors: 1 2 4 7 8 13 14 26 28 52 56 91 104 182 271 364 542 728 1084 1897 2168 3523 3794 7046 7588 14092 15176 24661 28184 49322 98644 197288