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2005412 = 221926387
BaseRepresentation
bin111101001100110100100
310202212220112
413221212210
51003133122
6110552152
723021453
oct7514644
93685815
102005412
11114a772
12808658
13552a46
143a2b9a
152992e2
hex1e99a4

2005412 has 12 divisors (see below), whose sum is σ = 3694320. Its totient is φ = 949896.

The previous prime is 2005397. The next prime is 2005417. The reversal of 2005412 is 2145002.

It is not an unprimeable number, because it can be changed into a prime (2005417) 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 3 ways as a sum of consecutive naturals, for example, 13118 + ... + 13269.

It is an arithmetic number, because the mean of its divisors is an integer number (307860).

22005412 is an apocalyptic number.

It is an amenable number.

2005412 is a deficient number, since it is larger than the sum of its proper divisors (1688908).

2005412 is a wasteful number, since it uses less digits than its factorization.

2005412 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 26410 (or 26408 counting only the distinct ones).

The product of its (nonzero) digits is 80, while the sum is 14.

The square root of 2005412 is about 1416.1257006354. The cubic root of 2005412 is about 126.1056475143.

The spelling of 2005412 in words is "two million, five thousand, four hundred twelve".

Divisors: 1 2 4 19 38 76 26387 52774 105548 501353 1002706 2005412