Search a number
-
+
12827385 = 325614673
BaseRepresentation
bin110000111011…
…101011111001
3220010200212100
4300323223321
511240434020
61134534013
7214013424
oct60735371
926120770
1012827385
11727144a
124367309
13287178c
1419bc9bb
1511d5a90
hexc3baf9

12827385 has 24 divisors (see below), whose sum is σ = 22603464. Its totient is φ = 6727680.

The previous prime is 12827363. The next prime is 12827387. The reversal of 12827385 is 58372821.

It can be written as a sum of positive squares in 4 ways, for example, as 1192464 + 11634921 = 1092^2 + 3411^2 .

It is not a de Polignac number, because 12827385 - 27 = 12827257 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12827387) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 409 + ... + 5081.

It is an arithmetic number, because the mean of its divisors is an integer number (941811).

Almost surely, 212827385 is an apocalyptic number.

12827385 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

12827385 is a deficient number, since it is larger than the sum of its proper divisors (9776079).

12827385 is a wasteful number, since it uses less digits than its factorization.

12827385 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4745 (or 4742 counting only the distinct ones).

The product of its digits is 26880, while the sum is 36.

The square root of 12827385 is about 3581.5338892715. The cubic root of 12827385 is about 234.0881215331.

The spelling of 12827385 in words is "twelve million, eight hundred twenty-seven thousand, three hundred eighty-five".

Divisors: 1 3 5 9 15 45 61 183 305 549 915 2745 4673 14019 23365 42057 70095 210285 285053 855159 1425265 2565477 4275795 12827385