Search a number
-
+
248956 = 22109571
BaseRepresentation
bin111100110001111100
3110122111121
4330301330
530431311
65200324
72054551
oct746174
9418447
10248956
11160054
121000a4
1389416
1466a28
154db71
hex3cc7c

248956 has 12 divisors (see below), whose sum is σ = 440440. Its totient is φ = 123120.

The previous prime is 248909. The next prime is 248971. The reversal of 248956 is 659842.

It is a happy number.

It is an Ulam number.

It is a zygodrome in base 2.

It is a congruent number.

It is an unprimeable number.

248956 is an untouchable number, because it is not equal to the sum of proper divisors of any number.

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, 151 + ... + 721.

2248956 is an apocalyptic number.

It is an amenable number.

248956 is a deficient number, since it is larger than the sum of its proper divisors (191484).

248956 is a wasteful number, since it uses less digits than its factorization.

248956 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 684 (or 682 counting only the distinct ones).

The product of its digits is 17280, while the sum is 34.

The square root of 248956 is about 498.9549077823. The cubic root of 248956 is about 62.9082396405.

The spelling of 248956 in words is "two hundred forty-eight thousand, nine hundred fifty-six".

Divisors: 1 2 4 109 218 436 571 1142 2284 62239 124478 248956