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2681271 = 322312953
BaseRepresentation
bin1010001110100110110111
312001020000100
422032212313
51141300041
6133245143
731535055
oct12164667
95036010
102681271
11157152a
12a937b3
1372b568
144db1d5
1537e6b6
hex28e9b7

2681271 has 12 divisors (see below), whose sum is σ = 4041648. Its totient is φ = 1709664.

The previous prime is 2681267. The next prime is 2681293. The reversal of 2681271 is 1721862.

It is not a de Polignac number, because 2681271 - 22 = 2681267 is a prime.

2681271 is a lucky number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2681201) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 6270 + ... + 6683.

It is an arithmetic number, because the mean of its divisors is an integer number (336804).

22681271 is an apocalyptic number.

2681271 is a deficient number, since it is larger than the sum of its proper divisors (1360377).

2681271 is a wasteful number, since it uses less digits than its factorization.

2681271 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12982 (or 12979 counting only the distinct ones).

The product of its digits is 1344, while the sum is 27.

The square root of 2681271 is about 1637.4587017693. The cubic root of 2681271 is about 138.9249461109.

The spelling of 2681271 in words is "two million, six hundred eighty-one thousand, two hundred seventy-one".

Divisors: 1 3 9 23 69 207 12953 38859 116577 297919 893757 2681271