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26971 = 73853
BaseRepresentation
bin110100101011011
31100222221
412211123
51330341
6324511
7141430
oct64533
940887
1026971
111929a
1213737
13c379
149b87
157ed1
hex695b

26971 has 4 divisors (see below), whose sum is σ = 30832. Its totient is φ = 23112.

The previous prime is 26959. The next prime is 26981. The reversal of 26971 is 17962.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 26971 - 29 = 26459 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (26921) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1920 + ... + 1933.

It is an arithmetic number, because the mean of its divisors is an integer number (7708).

226971 is an apocalyptic number.

26971 is a deficient number, since it is larger than the sum of its proper divisors (3861).

26971 is an equidigital number, since it uses as much as digits as its factorization.

26971 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3860.

The product of its digits is 756, while the sum is 25.

The square root of 26971 is about 164.2284993538. The cubic root of 26971 is about 29.9892554115.

Subtracting from 26971 its reverse (17962), we obtain a palindrome (9009).

The spelling of 26971 in words is "twenty-six thousand, nine hundred seventy-one".

Divisors: 1 7 3853 26971