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20482861 = 77141213
BaseRepresentation
bin100111000100…
…0101100101101
31102112122012111
41032020230231
520220422421
62011004021
7336046540
oct116105455
942478174
1020482861
1110620093
126a39611
134322149
142a12857
151be8ee1
hex1388b2d

20482861 has 8 divisors (see below), whose sum is σ = 23739264. Its totient is φ = 17309040.

The previous prime is 20482859. The next prime is 20482873. The reversal of 20482861 is 16828402.

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

It is not a de Polignac number, because 20482861 - 21 = 20482859 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20486861) 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, 20110 + ... + 21103.

It is an arithmetic number, because the mean of its divisors is an integer number (2967408).

Almost surely, 220482861 is an apocalyptic number.

It is an amenable number.

20482861 is a deficient number, since it is larger than the sum of its proper divisors (3256403).

20482861 is an equidigital number, since it uses as much as digits as its factorization.

20482861 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 41291.

The product of its (nonzero) digits is 6144, while the sum is 31.

The square root of 20482861 is about 4525.7994873834. The cubic root of 20482861 is about 273.6088910865.

The spelling of 20482861 in words is "twenty million, four hundred eighty-two thousand, eight hundred sixty-one".

Divisors: 1 7 71 497 41213 288491 2926123 20482861