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2000380 = 225100019
BaseRepresentation
bin111101000010111111100
310202122000011
413220113330
51003003010
6110513004
723001004
oct7502774
93678004
102000380
111146a08
12805764
13550675
143a1004
15297a8a
hex1e85fc

2000380 has 12 divisors (see below), whose sum is σ = 4200840. Its totient is φ = 800144.

The previous prime is 2000371. The next prime is 2000381. The reversal of 2000380 is 830002.

It is a self number, because there is not a number n which added to its sum of digits gives 2000380.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2000381) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 49990 + ... + 50029.

It is an arithmetic number, because the mean of its divisors is an integer number (350070).

22000380 is an apocalyptic number.

2000380 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

2000380 is an abundant number, since it is smaller than the sum of its proper divisors (2200460).

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

2000380 is a wasteful number, since it uses less digits than its factorization.

2000380 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 100028 (or 100026 counting only the distinct ones).

The product of its (nonzero) digits is 48, while the sum is 13.

The square root of 2000380 is about 1414.3479062805. The cubic root of 2000380 is about 126.0000839842. Note that the first 4 decimals are identical.

Adding to 2000380 its reverse (830002), we get a palindrome (2830382).

The spelling of 2000380 in words is "two million, three hundred eighty", and thus it is an aban number.

Divisors: 1 2 4 5 10 20 100019 200038 400076 500095 1000190 2000380