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249148 = 22199313
BaseRepresentation
bin111100110100111100
3110122202201
4330310330
530433043
65201244
72055244
oct746474
9418681
10249148
11160209
12100224
1389533
1466b24
154dc4d
hex3cd3c

249148 has 12 divisors (see below), whose sum is σ = 439600. Its totient is φ = 123552.

The previous prime is 249143. The next prime is 249181. The reversal of 249148 is 841942.

It is a hoax number, since the sum of its digits (28) coincides with the sum of the digits of its distinct prime factors.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (249143) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 640 + ... + 952.

2249148 is an apocalyptic number.

It is an amenable number.

249148 is a deficient number, since it is larger than the sum of its proper divisors (190452).

249148 is a wasteful number, since it uses less digits than its factorization.

249148 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 516 (or 514 counting only the distinct ones).

The product of its digits is 2304, while the sum is 28.

The square root of 249148 is about 499.1472728564. The cubic root of 249148 is about 62.9244075287.

The spelling of 249148 in words is "two hundred forty-nine thousand, one hundred forty-eight".

Divisors: 1 2 4 199 313 398 626 796 1252 62287 124574 249148