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2006720 = 2656271
BaseRepresentation
bin111101001111011000000
310202221200222
413221323000
51003203340
6111002212
723025332
oct7517300
93687628
102006720
111150751
12809368
13553511
143a3452
152998b5
hex1e9ec0

2006720 has 28 divisors (see below), whose sum is σ = 4779264. Its totient is φ = 802560.

The previous prime is 2006707. The next prime is 2006779. The reversal of 2006720 is 276002.

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 3 ways as a sum of consecutive naturals, for example, 2816 + ... + 3455.

It is an arithmetic number, because the mean of its divisors is an integer number (170688).

22006720 is an apocalyptic number.

2006720 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

2006720 is an abundant number, since it is smaller than the sum of its proper divisors (2772544).

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

2006720 is an equidigital number, since it uses as much as digits as its factorization.

2006720 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6288 (or 6278 counting only the distinct ones).

The product of its (nonzero) digits is 168, while the sum is 17.

The square root of 2006720 is about 1416.5874487655. The cubic root of 2006720 is about 126.1330583969.

The spelling of 2006720 in words is "two million, six thousand, seven hundred twenty".

Divisors: 1 2 4 5 8 10 16 20 32 40 64 80 160 320 6271 12542 25084 31355 50168 62710 100336 125420 200672 250840 401344 501680 1003360 2006720