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2011420 = 225163617
BaseRepresentation
bin111101011000100011100
310210012011001
413223010130
51003331140
6111040044
723045125
oct7530434
93705131
102011420
111154234
12810024
135556b8
143a504c
1529ae9a
hex1eb11c

2011420 has 24 divisors (see below), whose sum is σ = 4256784. Its totient is φ = 798336.

The previous prime is 2011417. The next prime is 2011439. The reversal of 2011420 is 241102.

It is a Harshad number since it is a multiple of its sum of digits (10).

It is a junction number, because it is equal to n+sod(n) for n = 2011397 and 2011406.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2952 + ... + 3568.

It is an arithmetic number, because the mean of its divisors is an integer number (177366).

22011420 is an apocalyptic number.

2011420 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

2011420 is an abundant number, since it is smaller than the sum of its proper divisors (2245364).

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

2011420 is a wasteful number, since it uses less digits than its factorization.

2011420 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 789 (or 787 counting only the distinct ones).

The product of its (nonzero) digits is 16, while the sum is 10.

The square root of 2011420 is about 1418.2453948453. The cubic root of 2011420 is about 126.2314549763.

Adding to 2011420 its reverse (241102), we get a palindrome (2252522).

The spelling of 2011420 in words is "two million, eleven thousand, four hundred twenty".

Divisors: 1 2 4 5 10 20 163 326 617 652 815 1234 1630 2468 3085 3260 6170 12340 100571 201142 402284 502855 1005710 2011420