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15071 = 72153
BaseRepresentation
bin11101011011111
3202200012
43223133
5440241
6153435
761640
oct35337
922605
1015071
1110361
12887b
136b24
1456c7
1546eb
hex3adf

15071 has 4 divisors (see below), whose sum is σ = 17232. Its totient is φ = 12912.

The previous prime is 15061. The next prime is 15073. The reversal of 15071 is 17051.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2k-15071 is a prime.

It is a Duffinian number.

It is a plaindrome in base 16.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (15073) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1070 + ... + 1083.

It is an arithmetic number, because the mean of its divisors is an integer number (4308).

215071 is an apocalyptic number.

15071 is a deficient number, since it is larger than the sum of its proper divisors (2161).

15071 is an equidigital number, since it uses as much as digits as its factorization.

15071 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2160.

The product of its (nonzero) digits is 35, while the sum is 14.

The square root of 15071 is about 122.7640012381. The cubic root of 15071 is about 24.7009708568.

The spelling of 15071 in words is "fifteen thousand, seventy-one".

Divisors: 1 7 2153 15071