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20727006 = 233454501
BaseRepresentation
bin100111100010…
…0010011011110
31110000001002220
41033010103132
520301231011
62020130210
7341114406
oct117042336
943001086
1020727006
1110777563
126b36966
1343a9301
142a77806
151c46506
hex13c44de

20727006 has 8 divisors (see below), whose sum is σ = 41454024. Its totient is φ = 6909000.

The previous prime is 20726971. The next prime is 20727023. The reversal of 20727006 is 60072702.

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

20727006 is an admirable number.

It is a congruent number.

It is an unprimeable number.

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, 1727245 + ... + 1727256.

It is an arithmetic number, because the mean of its divisors is an integer number (5181753).

Almost surely, 220727006 is an apocalyptic number.

20727006 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

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

20727006 is a wasteful number, since it uses less digits than its factorization.

20727006 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3454506.

The product of its (nonzero) digits is 1176, while the sum is 24.

The square root of 20727006 is about 4552.6921705734. The cubic root of 20727006 is about 274.6916919443.

Adding to 20727006 its reverse (60072702), we get a palindrome (80799708).

The spelling of 20727006 in words is "twenty million, seven hundred twenty-seven thousand, six".

Divisors: 1 2 3 6 3454501 6909002 10363503 20727006