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8130 = 235271
BaseRepresentation
bin1111111000010
3102011010
41333002
5230010
6101350
732463
oct17702
912133
108130
116121
124856
133915
142d6a
152620
hex1fc2

8130 has 16 divisors (see below), whose sum is σ = 19584. Its totient is φ = 2160.

The previous prime is 8123. The next prime is 8147. The reversal of 8130 is 318.

Subtracting from 8130 its sum of digits (12), we obtain a palindrome (8118).

Adding to 8130 its reverse (318), we get a palindrome (8448).

It can be divided in two parts, 81 and 30, that added together give a palindrome (111).

It is an unprimeable number.

8130 is an untouchable number, because it is not equal to the sum of proper divisors of any number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 106 + ... + 165.

It is an arithmetic number, because the mean of its divisors is an integer number (1224).

8130 is an abundant number, since it is smaller than the sum of its proper divisors (11454).

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 (9792).

8130 is a wasteful number, since it uses less digits than its factorization.

8130 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 281.

The product of its (nonzero) digits is 24, while the sum is 12.

The square root of 8130 is about 90.1665126308. The cubic root of 8130 is about 20.1077517686.

The spelling of 8130 in words is "eight thousand, one hundred thirty".

Divisors: 1 2 3 5 6 10 15 30 271 542 813 1355 1626 2710 4065 8130