Search a number
-
+
27825460 = 22513107021
BaseRepresentation
bin110101000100…
…1010100110100
31221100200100121
41222021110310
524110403320
62432221324
7455340535
oct152112464
957320317
1027825460
1114785753
12939a844
1359c3290
1439a468c
1526998aa
hex1a89534

27825460 has 24 divisors (see below), whose sum is σ = 62928936. Its totient is φ = 10273920.

The previous prime is 27825451. The next prime is 27825491. The reversal of 27825460 is 6452872.

It can be written as a sum of positive squares in 4 ways, for example, as 910116 + 26915344 = 954^2 + 5188^2 .

It is a congruent number.

It is an unprimeable number.

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 7 ways as a sum of consecutive naturals, for example, 53251 + ... + 53770.

It is an arithmetic number, because the mean of its divisors is an integer number (2622039).

Almost surely, 227825460 is an apocalyptic number.

27825460 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

27825460 is an abundant number, since it is smaller than the sum of its proper divisors (35103476).

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

27825460 is a wasteful number, since it uses less digits than its factorization.

27825460 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 107043 (or 107041 counting only the distinct ones).

The product of its (nonzero) digits is 26880, while the sum is 34.

The square root of 27825460 is about 5274.9843601664. The cubic root of 27825460 is about 303.0266217755.

The spelling of 27825460 in words is "twenty-seven million, eight hundred twenty-five thousand, four hundred sixty".

Divisors: 1 2 4 5 10 13 20 26 52 65 130 260 107021 214042 428084 535105 1070210 1391273 2140420 2782546 5565092 6956365 13912730 27825460