Search a number
-
+
271280 = 2453391
BaseRepresentation
bin1000010001110110000
3111210010102
41002032300
532140110
65451532
72206622
oct1021660
9453112
10271280
111758a9
12110ba8
1396629
1470c12
15555a5
hex423b0

271280 has 20 divisors (see below), whose sum is σ = 630912. Its totient is φ = 108480.

The previous prime is 271279. The next prime is 271289. The reversal of 271280 is 82172.

It is a tau number, because it is divible by the number of its divisors (20).

It is a Harshad number since it is a multiple of its sum of digits (20).

It is not an unprimeable number, because it can be changed into a prime (271289) 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 3 ways as a sum of consecutive naturals, for example, 1616 + ... + 1775.

2271280 is an apocalyptic number.

271280 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

271280 is an abundant number, since it is smaller than the sum of its proper divisors (359632).

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

271280 is a wasteful number, since it uses less digits than its factorization.

271280 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3404 (or 3398 counting only the distinct ones).

The product of its (nonzero) digits is 224, while the sum is 20.

The square root of 271280 is about 520.8454665253. The cubic root of 271280 is about 64.7350158874.

The spelling of 271280 in words is "two hundred seventy-one thousand, two hundred eighty".

Divisors: 1 2 4 5 8 10 16 20 40 80 3391 6782 13564 16955 27128 33910 54256 67820 135640 271280