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248080 = 2457443
BaseRepresentation
bin111100100100010000
3110121022011
4330210100
530414310
65152304
72052160
oct744420
9417264
10248080
1115a428
12bb694
1388bc1
14665a0
154d78a
hex3c910

248080 has 40 divisors (see below), whose sum is σ = 660672. Its totient is φ = 84864.

The previous prime is 248077. The next prime is 248089. The reversal of 248080 is 80842.

It is a tau number, because it is divible by the number of its divisors (40).

It is a nialpdrome in base 8.

It is not an unprimeable number, because it can be changed into a prime (248089) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 339 + ... + 781.

2248080 is an apocalyptic number.

248080 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 248080, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (330336).

248080 is an abundant number, since it is smaller than the sum of its proper divisors (412592).

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

248080 is a wasteful number, since it uses less digits than its factorization.

248080 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 463 (or 457 counting only the distinct ones).

The product of its (nonzero) digits is 512, while the sum is 22.

The square root of 248080 is about 498.0762993759. The cubic root of 248080 is about 62.8343679789.

The spelling of 248080 in words is "two hundred forty-eight thousand, eighty".

Divisors: 1 2 4 5 7 8 10 14 16 20 28 35 40 56 70 80 112 140 280 443 560 886 1772 2215 3101 3544 4430 6202 7088 8860 12404 15505 17720 24808 31010 35440 49616 62020 124040 248080