Search a number
-
+
7055 = 51783
BaseRepresentation
bin1101110001111
3100200022
41232033
5211210
652355
726366
oct15617
910608
107055
115334
1240bb
133299
1427dd
152155
hex1b8f

7055 has 8 divisors (see below), whose sum is σ = 9072. Its totient is φ = 5248.

The previous prime is 7043. The next prime is 7057. The reversal of 7055 is 5507.

It can be divided in two parts, 70 and 55, that added together give a cube (125 = 53).

It is a Cunningham number, because it is equal to 842-1.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 7055 - 24 = 7039 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (17).

It is a Duffinian number.

It is a plaindrome in base 14.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (7057) 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, 44 + ... + 126.

It is an arithmetic number, because the mean of its divisors is an integer number (1134).

27055 is an apocalyptic number.

7055 is a deficient number, since it is larger than the sum of its proper divisors (2017).

7055 is a wasteful number, since it uses less digits than its factorization.

7055 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 105.

The product of its (nonzero) digits is 175, while the sum is 17.

The square root of 7055 is about 83.9940474081. The cubic root of 7055 is about 19.1792817603.

The spelling of 7055 in words is "seven thousand, fifty-five".

Divisors: 1 5 17 83 85 415 1411 7055