Cookie Consent by FreePrivacyPolicy.com
Search a number
-
+
2130131 = 6731793
BaseRepresentation
bin1000001000000011010011
311000012222202
420020003103
51021131011
6113353415
724051203
oct10100323
94005882
102130131
111225443
1286886b
13597743
143d6403
152c123b
hex2080d3

2130131 has 4 divisors (see below), whose sum is σ = 2161992. Its totient is φ = 2098272.

The previous prime is 2130101. The next prime is 2130133. The reversal of 2130131 is 1310312.

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

It is a cyclic number.

It is not a de Polignac number, because 2130131 - 210 = 2129107 is a prime.

It is a super-2 number, since 2×21301312 = 9074916154322, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (2130133) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 15830 + ... + 15963.

It is an arithmetic number, because the mean of its divisors is an integer number (540498).

22130131 is an apocalyptic number.

2130131 is a deficient number, since it is larger than the sum of its proper divisors (31861).

2130131 is an equidigital number, since it uses as much as digits as its factorization.

2130131 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 31860.

The product of its (nonzero) digits is 18, while the sum is 11.

The square root of 2130131 is about 1459.4968311031. The cubic root of 2130131 is about 128.6674727981.

Adding to 2130131 its reverse (1310312), we get a palindrome (3440443).

The spelling of 2130131 in words is "two million, one hundred thirty thousand, one hundred thirty-one".

Divisors: 1 67 31793 2130131