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20674053 = 325094513
BaseRepresentation
bin100111011011…
…1011000000101
31102220100110200
41032313120011
520243032203
62015041113
7340504131
oct116673005
942810420
1020674053
11107407a4
126b10199
13438b18a
142a623c1
151c359a3
hex13b7605

20674053 has 12 divisors (see below), whose sum is σ = 29927820. Its totient is φ = 13752576.

The previous prime is 20674037. The next prime is 20674061. The reversal of 20674053 is 35047602.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 6066369 + 14607684 = 2463^2 + 3822^2 .

It is not a de Polignac number, because 20674053 - 24 = 20674037 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20674153) by changing a digit.

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 11 ways as a sum of consecutive naturals, for example, 2325 + ... + 6837.

It is an arithmetic number, because the mean of its divisors is an integer number (2493985).

Almost surely, 220674053 is an apocalyptic number.

It is an amenable number.

20674053 is a deficient number, since it is larger than the sum of its proper divisors (9253767).

20674053 is a wasteful number, since it uses less digits than its factorization.

20674053 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5028 (or 5025 counting only the distinct ones).

The product of its (nonzero) digits is 5040, while the sum is 27.

The square root of 20674053 is about 4546.8728814428. The cubic root of 20674053 is about 274.4575665743.

The spelling of 20674053 in words is "twenty million, six hundred seventy-four thousand, fifty-three".

Divisors: 1 3 9 509 1527 4513 4581 13539 40617 2297117 6891351 20674053