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2005074 = 23412377
BaseRepresentation
bin111101001100001010010
310202212110000
413221201102
51003130244
6110550430
723020461
oct7514122
93685400
102005074
11114a495
12808416
13552846
143a29d8
15299169
hex1e9852

2005074 has 20 divisors (see below), whose sum is σ = 4493214. Its totient is φ = 668304.

The previous prime is 2005061. The next prime is 2005079. The reversal of 2005074 is 4705002.

It is a happy number.

It can be written as a sum of positive squares in only one way, i.e., 1946025 + 59049 = 1395^2 + 243^2 .

It is a Harshad number since it is a multiple of its sum of digits (18).

It is not an unprimeable number, because it can be changed into a prime (2005079) by changing a digit.

It is a polite number, since it can be written in 9 ways as a sum of consecutive naturals, for example, 6027 + ... + 6350.

22005074 is an apocalyptic number.

2005074 is an abundant number, since it is smaller than the sum of its proper divisors (2488140).

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

2005074 is a wasteful number, since it uses less digits than its factorization.

2005074 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12391 (or 12382 counting only the distinct ones).

The product of its (nonzero) digits is 280, while the sum is 18.

The square root of 2005074 is about 1416.0063559179. The cubic root of 2005074 is about 126.0985623362.

Subtracting from 2005074 its sum of digits (18), we obtain a square (2005056 = 14162).

The spelling of 2005074 in words is "two million, five thousand, seventy-four".

Divisors: 1 2 3 6 9 18 27 54 81 162 12377 24754 37131 74262 111393 222786 334179 668358 1002537 2005074