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20108006 = 216361681
BaseRepresentation
bin100110010110…
…1001011100110
31101211120222222
41030231023212
520121424011
61554552342
7332625632
oct114551346
941746888
1020108006
1110394496
1268986b2
134220639
142955dc2
151b72ddb
hex132d2e6

20108006 has 8 divisors (see below), whose sum is σ = 30347544. Its totient is φ = 9992160.

The previous prime is 20107951. The next prime is 20108009. The reversal of 20108006 is 60080102.

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

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20108009) 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 3 ways as a sum of consecutive naturals, for example, 30515 + ... + 31166.

It is an arithmetic number, because the mean of its divisors is an integer number (3793443).

Almost surely, 220108006 is an apocalyptic number.

20108006 is a deficient number, since it is larger than the sum of its proper divisors (10239538).

20108006 is a wasteful number, since it uses less digits than its factorization.

20108006 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 61846.

The product of its (nonzero) digits is 96, while the sum is 17.

The square root of 20108006 is about 4484.1951340235. The cubic root of 20108006 is about 271.9295070350.

Adding to 20108006 its reverse (60080102), we get a palindrome (80188108).

The spelling of 20108006 in words is "twenty million, one hundred eight thousand, six".

Divisors: 1 2 163 326 61681 123362 10054003 20108006