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20944095 = 351396273
BaseRepresentation
bin100111111100…
…1010011011111
31110102001220020
41033321103133
520330202340
62024523223
7343010334
oct117712337
943361806
1020944095
1110905677
127020513
134454073
142ad298b
151c8a9d0
hex13f94df

20944095 has 8 divisors (see below), whose sum is σ = 33510576. Its totient is φ = 11170176.

The previous prime is 20944087. The next prime is 20944097. The reversal of 20944095 is 59044902.

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

It is not a de Polignac number, because 20944095 - 23 = 20944087 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20944097) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 698122 + ... + 698151.

It is an arithmetic number, because the mean of its divisors is an integer number (4188822).

Almost surely, 220944095 is an apocalyptic number.

20944095 is a deficient number, since it is larger than the sum of its proper divisors (12566481).

20944095 is a wasteful number, since it uses less digits than its factorization.

20944095 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1396281.

The product of its (nonzero) digits is 12960, while the sum is 33.

The square root of 20944095 is about 4576.4718943745. The cubic root of 20944095 is about 275.6473783898.

Adding to 20944095 its reverse (59044902), we get a palindrome (79988997).

The spelling of 20944095 in words is "twenty million, nine hundred forty-four thousand, ninety-five".

Divisors: 1 3 5 15 1396273 4188819 6981365 20944095