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20677097 = 722912899
BaseRepresentation
bin100111011100…
…0000111101001
31102220111122102
41032320013221
520243131342
62015103145
7340516040
oct116700751
942814572
1020677097
1110743011
126b11ab5
13438c68c
142a63557
151c36832
hex13b81e9

20677097 has 8 divisors (see below), whose sum is σ = 23736000. Its totient is φ = 17644464.

The previous prime is 20677091. The next prime is 20677099. The reversal of 20677097 is 79077602.

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

It is a cyclic number.

It is not a de Polignac number, because 20677097 - 224 = 3899881 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 20677097.

It is not an unprimeable number, because it can be changed into a prime (20677091) 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 7 ways as a sum of consecutive naturals, for example, 4847 + ... + 8052.

It is an arithmetic number, because the mean of its divisors is an integer number (2967000).

Almost surely, 220677097 is an apocalyptic number.

It is an amenable number.

20677097 is a deficient number, since it is larger than the sum of its proper divisors (3058903).

20677097 is a wasteful number, since it uses less digits than its factorization.

20677097 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 13135.

The product of its (nonzero) digits is 37044, while the sum is 38.

The square root of 20677097 is about 4547.2076046734. The cubic root of 20677097 is about 274.4710360801.

The spelling of 20677097 in words is "twenty million, six hundred seventy-seven thousand, ninety-seven".

Divisors: 1 7 229 1603 12899 90293 2953871 20677097