Search a number
-
+
12830260 = 225641513
BaseRepresentation
bin110000111100…
…011000110100
3220010211210211
4300330120310
511241032020
61134555204
7214025002
oct60743064
926124724
1012830260
117273623
124368b04
132872b91
1419bda72
1511d685a
hexc3c634

12830260 has 12 divisors (see below), whose sum is σ = 26943588. Its totient is φ = 5132096.

The previous prime is 12830243. The next prime is 12830269. The reversal of 12830260 is 6203821.

It can be written as a sum of positive squares in 2 ways, for example, as 3429904 + 9400356 = 1852^2 + 3066^2 .

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12830269) 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, 320737 + ... + 320776.

It is an arithmetic number, because the mean of its divisors is an integer number (2245299).

Almost surely, 212830260 is an apocalyptic number.

12830260 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

12830260 is an abundant number, since it is smaller than the sum of its proper divisors (14113328).

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

12830260 is a wasteful number, since it uses less digits than its factorization.

12830260 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 641522 (or 641520 counting only the distinct ones).

The product of its (nonzero) digits is 576, while the sum is 22.

The square root of 12830260 is about 3581.9352311286. The cubic root of 12830260 is about 234.1056089393.

The spelling of 12830260 in words is "twelve million, eight hundred thirty thousand, two hundred sixty".

Divisors: 1 2 4 5 10 20 641513 1283026 2566052 3207565 6415130 12830260