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297081 = 3311003
BaseRepresentation
bin1001000100001111001
3120002112000
41020201321
534001311
610211213
72345061
oct1104171
9502460
10297081
11193224
12123b09
13a52b5
147a3a1
155d056
hex48879

297081 has 8 divisors (see below), whose sum is σ = 440160. Its totient is φ = 198036.

The previous prime is 297079. The next prime is 297083. The reversal of 297081 is 180792.

297081 is digitally balanced in base 7, because in such base it contains all the possibile digits an equal number of times.

It is an interprime number because it is at equal distance from previous prime (297079) and next prime (297083).

It is not a de Polignac number, because 297081 - 21 = 297079 is a prime.

It is a super-2 number, since 2×2970812 = 176514241122, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (27), and also a Moran number because the ratio is a prime number: 11003 = 297081 / (2 + 9 + 7 + 0 + 8 + 1).

297081 is strictly pandigital in base 7.

It is a Curzon number.

297081 is a lucky number.

It is not an unprimeable number, because it can be changed into a prime (297083) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 5475 + ... + 5528.

It is an arithmetic number, because the mean of its divisors is an integer number (55020).

2297081 is an apocalyptic number.

It is an amenable number.

297081 is a deficient number, since it is larger than the sum of its proper divisors (143079).

297081 is a wasteful number, since it uses less digits than its factorization.

297081 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11012 (or 11006 counting only the distinct ones).

The product of its (nonzero) digits is 1008, while the sum is 27.

The square root of 297081 is about 545.0513737254. The cubic root of 297081 is about 66.7254675660.

The spelling of 297081 in words is "two hundred ninety-seven thousand, eighty-one".

Divisors: 1 3 9 27 11003 33009 99027 297081