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2005270 = 251931039
BaseRepresentation
bin111101001100100010110
310202212201021
413221210112
51003132040
6110551354
723021161
oct7514426
93685637
102005270
11114a653
1280855a
13552967
143a2ad8
1529924a
hex1e9916

2005270 has 16 divisors (see below), whose sum is σ = 3631680. Its totient is φ = 797184.

The previous prime is 2005261. The next prime is 2005277. The reversal of 2005270 is 725002.

It is a happy number.

It is a super-2 number, since 2×20052702 = 8042215545800, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2005277) 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 7 ways as a sum of consecutive naturals, for example, 1411 + ... + 2449.

It is an arithmetic number, because the mean of its divisors is an integer number (226980).

22005270 is an apocalyptic number.

2005270 is a deficient number, since it is larger than the sum of its proper divisors (1626410).

2005270 is a wasteful number, since it uses less digits than its factorization.

2005270 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1239.

The product of its (nonzero) digits is 140, while the sum is 16.

The square root of 2005270 is about 1416.0755629556. The cubic root of 2005270 is about 126.1026709980.

The spelling of 2005270 in words is "two million, five thousand, two hundred seventy".

Divisors: 1 2 5 10 193 386 965 1039 1930 2078 5195 10390 200527 401054 1002635 2005270