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2012420 = 225100621
BaseRepresentation
bin111101011010100000100
310210020112002
413223110010
51003344140
6111044432
723051054
oct7532404
93706462
102012420
111154a63
12810718
13555ca7
143a5564
1529b415
hex1eb504

2012420 has 12 divisors (see below), whose sum is σ = 4226124. Its totient is φ = 804960.

The previous prime is 2012419. The next prime is 2012429. The reversal of 2012420 is 242102.

It can be written as a sum of positive squares in 2 ways, for example, as 1359556 + 652864 = 1166^2 + 808^2 .

It is not an unprimeable number, because it can be changed into a prime (2012429) 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, 50291 + ... + 50330.

It is an arithmetic number, because the mean of its divisors is an integer number (352177).

22012420 is an apocalyptic number.

2012420 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

2012420 is an abundant number, since it is smaller than the sum of its proper divisors (2213704).

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

2012420 is a wasteful number, since it uses less digits than its factorization.

2012420 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 100630 (or 100628 counting only the distinct ones).

The product of its (nonzero) digits is 32, while the sum is 11.

The square root of 2012420 is about 1418.5978993358. The cubic root of 2012420 is about 126.2523706381.

Adding to 2012420 its reverse (242102), we get a palindrome (2254522).

The spelling of 2012420 in words is "two million, twelve thousand, four hundred twenty".

Divisors: 1 2 4 5 10 20 100621 201242 402484 503105 1006210 2012420