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2000131 = 7240819
BaseRepresentation
bin111101000010100000011
310202121122221
413220110003
51003001011
6110511511
723000200
oct7502403
93677587
102000131
111146801
12805597
13550513
143a0ca7
15297971
hex1e8503

2000131 has 6 divisors (see below), whose sum is σ = 2326740. Its totient is φ = 1714356.

The previous prime is 2000113. The next prime is 2000143. The reversal of 2000131 is 1310002.

It is not a de Polignac number, because 2000131 - 27 = 2000003 is a prime.

It is a super-2 number, since 2×20001312 = 8001048034322, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (7).

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (2000731) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 20361 + ... + 20458.

It is an arithmetic number, because the mean of its divisors is an integer number (387790).

22000131 is an apocalyptic number.

2000131 is a deficient number, since it is larger than the sum of its proper divisors (326609).

2000131 is an equidigital number, since it uses as much as digits as its factorization.

2000131 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 40833 (or 40826 counting only the distinct ones).

The product of its (nonzero) digits is 6, while the sum is 7.

The square root of 2000131 is about 1414.2598771089. The cubic root of 2000131 is about 125.9948557571.

Adding to 2000131 its reverse (1310002), we get a palindrome (3310133).

The spelling of 2000131 in words is "two million, one hundred thirty-one", and thus it is an aban number.

Divisors: 1 7 49 40819 285733 2000131