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20271093 = 361110771
BaseRepresentation
bin100110101010…
…0111111110101
31102010212201020
41031110333311
520142133333
62002251353
7334205253
oct115247765
942125636
1020271093
1110495a77
126956b59
13427993b
1429995d3
151ba63b3
hex1354ff5

20271093 has 8 divisors (see below), whose sum is σ = 27471456. Its totient is φ = 13292400.

The previous prime is 20271091. The next prime is 20271101. The reversal of 20271093 is 39017202.

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

It is not a de Polignac number, because 20271093 - 21 = 20271091 is a prime.

It is a super-2 number, since 2×202710932 = 821834422829298, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20271091) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 55203 + ... + 55568.

It is an arithmetic number, because the mean of its divisors is an integer number (3433932).

Almost surely, 220271093 is an apocalyptic number.

It is an amenable number.

20271093 is a deficient number, since it is larger than the sum of its proper divisors (7200363).

20271093 is a wasteful number, since it uses less digits than its factorization.

20271093 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 110835.

The product of its (nonzero) digits is 756, while the sum is 24.

The square root of 20271093 is about 4502.3430566762. The cubic root of 20271093 is about 272.6626944170.

Adding to 20271093 its reverse (39017202), we get a palindrome (59288295).

The spelling of 20271093 in words is "twenty million, two hundred seventy-one thousand, ninety-three".

Divisors: 1 3 61 183 110771 332313 6757031 20271093