Search a number
-
+
13230418 = 224127449
BaseRepresentation
bin110010011110…
…000101010010
3220220011201111
4302132011102
511341333133
61151323534
7220312435
oct62360522
926804644
1013230418
117517233
1245205aa
132983066
141a8581c
1512651cd
hexc9e152

13230418 has 8 divisors (see below), whose sum is σ = 19928700. Its totient is φ = 6587520.

The previous prime is 13230391. The next prime is 13230419. The reversal of 13230418 is 81403231.

It can be written as a sum of positive squares in 2 ways, for example, as 12341169 + 889249 = 3513^2 + 943^2 .

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

It is not an unprimeable number, because it can be changed into a prime (13230419) 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, 13243 + ... + 14206.

Almost surely, 213230418 is an apocalyptic number.

13230418 is a deficient number, since it is larger than the sum of its proper divisors (6698282).

13230418 is a wasteful number, since it uses less digits than its factorization.

13230418 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 27692.

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

The square root of 13230418 is about 3637.3641555390. The cubic root of 13230418 is about 236.5145457220.

Adding to 13230418 its reverse (81403231), we get a palindrome (94633649).

The spelling of 13230418 in words is "thirteen million, two hundred thirty thousand, four hundred eighteen".

Divisors: 1 2 241 482 27449 54898 6615209 13230418