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248020 = 22512401
BaseRepresentation
bin111100100011010100
3110121012221
4330203110
530414040
65152124
72052043
oct744324
9417187
10248020
1115a383
12bb644
1388b76
146655a
154d74a
hex3c8d4

248020 has 12 divisors (see below), whose sum is σ = 520884. Its totient is φ = 99200.

The previous prime is 247999. The next prime is 248021. The reversal of 248020 is 20842.

248020 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 2 ways, for example, as 91204 + 156816 = 302^2 + 396^2 .

It is a nialpdrome in base 12.

It is a junction number, because it is equal to n+sod(n) for n = 247985 and 248003.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (248021) by changing a digit.

248020 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 3 ways as a sum of consecutive naturals, for example, 6181 + ... + 6220.

It is an arithmetic number, because the mean of its divisors is an integer number (43407).

2248020 is an apocalyptic number.

248020 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

248020 is an abundant number, since it is smaller than the sum of its proper divisors (272864).

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

248020 is a wasteful number, since it uses less digits than its factorization.

248020 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12410 (or 12408 counting only the distinct ones).

The product of its (nonzero) digits is 128, while the sum is 16.

The square root of 248020 is about 498.0160639979. The cubic root of 248020 is about 62.8293019168.

Subtracting from 248020 its sum of digits (16), we obtain a square (248004 = 4982).

Adding to 248020 its reverse (20842), we get a palindrome (268862).

It can be divided in two parts, 2480 and 20, that added together give a square (2500 = 502).

The spelling of 248020 in words is "two hundred forty-eight thousand, twenty".

Divisors: 1 2 4 5 10 20 12401 24802 49604 62005 124010 248020