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20419482 = 2317200191
BaseRepresentation
bin100110111100…
…1001110011010
31102102102021010
41031321032122
520211410412
62005354350
7335364006
oct115711632
942372233
1020419482
1110587506
126a089b6
1342cc345
1429d7706
151bd533c
hex137939a

20419482 has 16 divisors (see below), whose sum is σ = 43241472. Its totient is φ = 6406080.

The previous prime is 20419481. The next prime is 20419501. The reversal of 20419482 is 28491402.

It is not an unprimeable number, because it can be changed into a prime (20419481) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 99994 + ... + 100197.

It is an arithmetic number, because the mean of its divisors is an integer number (2702592).

Almost surely, 220419482 is an apocalyptic number.

20419482 is an abundant number, since it is smaller than the sum of its proper divisors (22821990).

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

20419482 is a wasteful number, since it uses less digits than its factorization.

20419482 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 200213.

The product of its (nonzero) digits is 4608, while the sum is 30.

The square root of 20419482 is about 4518.7920952396. The cubic root of 20419482 is about 273.3263951574.

The spelling of 20419482 in words is "twenty million, four hundred nineteen thousand, four hundred eighty-two".

Divisors: 1 2 3 6 17 34 51 102 200191 400382 600573 1201146 3403247 6806494 10209741 20419482