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2083405 = 52691549
BaseRepresentation
bin111111100101001001101
310220211220011
413330221031
51013132110
6112353221
723465032
oct7745115
93824804
102083405
1111a3325
12845811
1357c3ac
143c3389
152b248a
hex1fca4d

2083405 has 8 divisors (see below), whose sum is σ = 2511000. Its totient is φ = 1659456.

The previous prime is 2083399. The next prime is 2083421. The reversal of 2083405 is 5043802.

It can be written as a sum of positive squares in 4 ways, for example, as 1156 + 2082249 = 34^2 + 1443^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 2083405 - 29 = 2082893 is a prime.

It is an Ulam number.

It is a congruent number.

It is an unprimeable number.

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 7 ways as a sum of consecutive naturals, for example, 571 + ... + 2119.

It is an arithmetic number, because the mean of its divisors is an integer number (313875).

22083405 is an apocalyptic number.

It is an amenable number.

2083405 is a deficient number, since it is larger than the sum of its proper divisors (427595).

2083405 is a wasteful number, since it uses less digits than its factorization.

2083405 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1823.

The product of its (nonzero) digits is 960, while the sum is 22.

The square root of 2083405 is about 1443.4004988221. The cubic root of 2083405 is about 127.7197032179.

The spelling of 2083405 in words is "two million, eighty-three thousand, four hundred five".

Divisors: 1 5 269 1345 1549 7745 416681 2083405