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20482449 = 313525191
BaseRepresentation
bin100111000100…
…0100110010001
31102112121122020
41032020212101
520220414244
62011002053
7336045411
oct116104621
942477566
1020482449
111061a849
126a39329
134321bc0
142a12641
151be8d19
hex1388991

20482449 has 8 divisors (see below), whose sum is σ = 29410752. Its totient is φ = 12604560.

The previous prime is 20482391. The next prime is 20482463. The reversal of 20482449 is 94428402.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 20482449 - 213 = 20474257 is a prime.

It is not an unprimeable number, because it can be changed into a prime (20486449) 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, 262557 + ... + 262634.

It is an arithmetic number, because the mean of its divisors is an integer number (3676344).

Almost surely, 220482449 is an apocalyptic number.

It is an amenable number.

20482449 is a deficient number, since it is larger than the sum of its proper divisors (8928303).

20482449 is a wasteful number, since it uses less digits than its factorization.

20482449 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 525207.

The product of its (nonzero) digits is 18432, while the sum is 33.

The square root of 20482449 is about 4525.7539703347. The cubic root of 20482449 is about 273.6070565833.

The spelling of 20482449 in words is "twenty million, four hundred eighty-two thousand, four hundred forty-nine".

Divisors: 1 3 13 39 525191 1575573 6827483 20482449