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7115 = 51423
BaseRepresentation
bin1101111001011
3100202112
41233023
5211430
652535
726513
oct15713
910675
107115
115389
12414b
133314
142843
152195
hex1bcb

7115 has 4 divisors (see below), whose sum is σ = 8544. Its totient is φ = 5688.

The previous prime is 7109. The next prime is 7121. The reversal of 7115 is 5117.

7115 = T23 + T24 + ... + T37.

7115 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

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

It is an interprime number because it is at equal distance from previous prime (7109) and next prime (7121).

It is a cyclic number.

It is not a de Polignac number, because 7115 - 210 = 6091 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 7115.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 707 + ... + 716.

It is an arithmetic number, because the mean of its divisors is an integer number (2136).

27115 is an apocalyptic number.

7115 is a deficient number, since it is larger than the sum of its proper divisors (1429).

7115 is a wasteful number, since it uses less digits than its factorization.

7115 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1428.

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

The square root of 7115 is about 84.3504593941. The cubic root of 7115 is about 19.2334990996.

The spelling of 7115 in words is "seven thousand, one hundred fifteen".

Divisors: 1 5 1423 7115