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2075780 = 225714827
BaseRepresentation
bin111111010110010000100
310220110102202
413322302010
51012411110
6112254032
723433560
oct7726204
93813382
102075780
111198623
12841318
13578a95
143c06a0
152b00a5
hex1fac84

2075780 has 24 divisors (see below), whose sum is σ = 4982208. Its totient is φ = 711648.

The previous prime is 2075779. The next prime is 2075803. The reversal of 2075780 is 875702.

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, 7274 + ... + 7553.

It is an arithmetic number, because the mean of its divisors is an integer number (207592).

22075780 is an apocalyptic number.

2075780 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

2075780 is an abundant number, since it is smaller than the sum of its proper divisors (2906428).

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

2075780 is a wasteful number, since it uses less digits than its factorization.

2075780 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 14843 (or 14841 counting only the distinct ones).

The product of its (nonzero) digits is 3920, while the sum is 29.

The square root of 2075780 is about 1440.7567456028. The cubic root of 2075780 is about 127.5637000676.

The spelling of 2075780 in words is "two million, seventy-five thousand, seven hundred eighty".

Divisors: 1 2 4 5 7 10 14 20 28 35 70 140 14827 29654 59308 74135 103789 148270 207578 296540 415156 518945 1037890 2075780