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481280 = 211547
BaseRepresentation
bin1110101100000000000
3220110012012
41311200000
5110400110
614152052
74043102
oct1654000
9813165
10481280
112a9658
121b2628
1313b0a7
14c7572
1597905
hex75800

481280 has 48 divisors (see below), whose sum is σ = 1179360. Its totient is φ = 188416.

The previous prime is 481249. The next prime is 481297. The reversal of 481280 is 82184.

481280 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is a congruent number.

It is an inconsummate number, since it does not exist a number n which divided by its sum of digits gives 481280.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 10217 + ... + 10263.

It is an arithmetic number, because the mean of its divisors is an integer number (24570).

2481280 is an apocalyptic number.

481280 is a gapful number since it is divisible by the number (40) 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 481280, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (589680).

481280 is an abundant number, since it is smaller than the sum of its proper divisors (698080).

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

481280 is an equidigital number, since it uses as much as digits as its factorization.

481280 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 74 (or 54 counting only the distinct ones).

The product of its (nonzero) digits is 512, while the sum is 23.

The square root of 481280 is about 693.7434684377. The cubic root of 481280 is about 78.3668886972.

The spelling of 481280 in words is "four hundred eighty-one thousand, two hundred eighty".

Divisors: 1 2 4 5 8 10 16 20 32 40 47 64 80 94 128 160 188 235 256 320 376 470 512 640 752 940 1024 1280 1504 1880 2048 2560 3008 3760 5120 6016 7520 10240 12032 15040 24064 30080 48128 60160 96256 120320 240640 481280