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20087027 = 23873349
BaseRepresentation
bin100110010100…
…0000011110011
31101210112012222
41030220003303
520120241102
61554311255
7332510522
oct114500363
941715188
1020087027
111037a754
12688852b
134213c1c
14294c4b9
151b6baa2
hex13280f3

20087027 has 4 divisors (see below), whose sum is σ = 20960400. Its totient is φ = 19213656.

The previous prime is 20087021. The next prime is 20087059. The reversal of 20087027 is 72078002.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 20087027 - 28 = 20086771 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 20086987 and 20087005.

It is not an unprimeable number, because it can be changed into a prime (20087021) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 436652 + ... + 436697.

It is an arithmetic number, because the mean of its divisors is an integer number (5240100).

Almost surely, 220087027 is an apocalyptic number.

20087027 is a deficient number, since it is larger than the sum of its proper divisors (873373).

20087027 is an equidigital number, since it uses as much as digits as its factorization.

20087027 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 873372.

The product of its (nonzero) digits is 1568, while the sum is 26.

The square root of 20087027 is about 4481.8553077939. The cubic root of 20087027 is about 271.8349046786.

The spelling of 20087027 in words is "twenty million, eighty-seven thousand, twenty-seven".

Divisors: 1 23 873349 20087027