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2076805 = 51753461
BaseRepresentation
bin111111011000010000101
310220111211201
413323002011
51012424210
6112302501
723436553
oct7730205
93814751
102076805
111199375
12841a31
135793a3
143c0bd3
152b053a
hex1fb085

2076805 has 16 divisors (see below), whose sum is σ = 2694384. Its totient is φ = 1530880.

The previous prime is 2076803. The next prime is 2076829. The reversal of 2076805 is 5086702.

It can be written as a sum of positive squares in 8 ways, for example, as 20449 + 2056356 = 143^2 + 1434^2 .

It is not a de Polignac number, because 2076805 - 21 = 2076803 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2076803) by changing a digit.

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 15 ways as a sum of consecutive naturals, for example, 4275 + ... + 4735.

It is an arithmetic number, because the mean of its divisors is an integer number (168399).

22076805 is an apocalyptic number.

It is an amenable number.

2076805 is a deficient number, since it is larger than the sum of its proper divisors (617579).

2076805 is a wasteful number, since it uses less digits than its factorization.

2076805 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 536.

The product of its (nonzero) digits is 3360, while the sum is 28.

The square root of 2076805 is about 1441.1124175442. The cubic root of 2076805 is about 127.5846931846.

The spelling of 2076805 in words is "two million, seventy-six thousand, eight hundred five".

Divisors: 1 5 17 53 85 265 461 901 2305 4505 7837 24433 39185 122165 415361 2076805