Search a number
-
+
248730 = 2358291
BaseRepresentation
bin111100101110011010
3110122012020
4330232122
530424410
65155310
72054106
oct745632
9418166
10248730
1115a969
12bbb36
13892a1
1466906
154da70
hex3cb9a

248730 has 16 divisors (see below), whose sum is σ = 597024. Its totient is φ = 66320.

The previous prime is 248723. The next prime is 248737. The reversal of 248730 is 37842.

248730 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is an interprime number because it is at equal distance from previous prime (248723) and next prime (248737).

It is a super-2 number, since 2×2487302 = 123733225800, which contains 22 as substring.

It is a d-powerful number, because it can be written as 215 + 48 + 76 + 85 + 32 + 0 .

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 248730.

It is not an unprimeable number, because it can be changed into a prime (248737) 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 7 ways as a sum of consecutive naturals, for example, 4116 + ... + 4175.

It is an arithmetic number, because the mean of its divisors is an integer number (37314).

2248730 is an apocalyptic number.

248730 is an abundant number, since it is smaller than the sum of its proper divisors (348294).

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

248730 is a wasteful number, since it uses less digits than its factorization.

248730 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8301.

The product of its (nonzero) digits is 1344, while the sum is 24.

The square root of 248730 is about 498.7283829902. The cubic root of 248730 is about 62.8891980342.

The spelling of 248730 in words is "two hundred forty-eight thousand, seven hundred thirty".

Divisors: 1 2 3 5 6 10 15 30 8291 16582 24873 41455 49746 82910 124365 248730