Cookie Consent by FreePrivacyPolicy.com
Search a number
-
+
7180 = 225359
BaseRepresentation
bin1110000001100
3100211221
41300030
5212210
653124
726635
oct16014
910757
107180
115438
1241a4
133364
14288c
1521da
hex1c0c

7180 has 12 divisors (see below), whose sum is σ = 15120. Its totient is φ = 2864.

The previous prime is 7177. The next prime is 7187. The reversal of 7180 is 817.

It is a plaindrome in base 14.

It is a zygodrome in base 2.

It is not an unprimeable number, because it can be changed into a prime (7187) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (5) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 160 + ... + 199.

It is an arithmetic number, because the mean of its divisors is an integer number (1260).

27180 is an apocalyptic number.

It is an amenable number.

7180 is an abundant number, since it is smaller than the sum of its proper divisors (7940).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

It is a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (7560).

7180 is a wasteful number, since it uses less digits than its factorization.

7180 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 368 (or 366 counting only the distinct ones).

The product of its (nonzero) digits is 56, while the sum is 16.

The square root of 7180 is about 84.7348806573. The cubic root of 7180 is about 19.2918916784.

Adding to 7180 its reverse (817), we get a palindrome (7997).

It can be divided in two parts, 71 and 80, that added together give a palindrome (151).

The spelling of 7180 in words is "seven thousand, one hundred eighty".

Divisors: 1 2 4 5 10 20 359 718 1436 1795 3590 7180