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147249 = 3216361
BaseRepresentation
bin100011111100110001
321110222200
4203330301
514202444
63053413
71152204
oct437461
9243880
10147249
11a06a3
1271269
135203b
143b93b
152d969
hex23f31

147249 has 6 divisors (see below), whose sum is σ = 212706. Its totient is φ = 98160.

The previous prime is 147229. The next prime is 147253. The reversal of 147249 is 942741.

It is a happy number.

It can be written as a sum of positive squares in only one way, i.e., 119025 + 28224 = 345^2 + 168^2 .

It is a de Polignac number, because none of the positive numbers 2k-147249 is a prime.

It is a Curzon number.

It is an inconsummate number, since it does not exist a number n which divided by its sum of digits gives 147249.

It is not an unprimeable number, because it can be changed into a prime (147209) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 8172 + ... + 8189.

It is an arithmetic number, because the mean of its divisors is an integer number (35451).

147249 is a Friedman number, since it can be written as 9*(4^7-24+1), using all its digits and the basic arithmetic operations.

2147249 is an apocalyptic number.

It is an amenable number.

147249 is a deficient number, since it is larger than the sum of its proper divisors (65457).

147249 is a wasteful number, since it uses less digits than its factorization.

147249 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 16367 (or 16364 counting only the distinct ones).

The product of its digits is 2016, while the sum is 27.

The square root of 147249 is about 383.7303740910. The cubic root of 147249 is about 52.8061029447.

It can be divided in two parts, 1472 and 49, that added together give a square (1521 = 392).

The spelling of 147249 in words is "one hundred forty-seven thousand, two hundred forty-nine".

Divisors: 1 3 9 16361 49083 147249