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2012180 = 225100609
BaseRepresentation
bin111101011010000010100
310210020012012
413223100110
51003342210
6111043352
723050262
oct7532024
93706165
102012180
111154865
12810558
13555b51
143a5432
1529b305
hex1eb414

2012180 has 12 divisors (see below), whose sum is σ = 4225620. Its totient is φ = 804864.

The previous prime is 2012173. The next prime is 2012189. The reversal of 2012180 is 812102.

It can be written as a sum of positive squares in 2 ways, for example, as 988036 + 1024144 = 994^2 + 1012^2 .

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2012189) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 50285 + ... + 50324.

It is an arithmetic number, because the mean of its divisors is an integer number (352135).

22012180 is an apocalyptic number.

2012180 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

2012180 is an abundant number, since it is smaller than the sum of its proper divisors (2213440).

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

2012180 is a wasteful number, since it uses less digits than its factorization.

2012180 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 100618 (or 100616 counting only the distinct ones).

The product of its (nonzero) digits is 32, while the sum is 14.

The square root of 2012180 is about 1418.5133062471. The cubic root of 2012180 is about 126.2473515113.

Adding to 2012180 its reverse (812102), we get a palindrome (2824282).

The spelling of 2012180 in words is "two million, twelve thousand, one hundred eighty".

Divisors: 1 2 4 5 10 20 100609 201218 402436 503045 1006090 2012180