Search a number
-
+
13251130 = 2510912157
BaseRepresentation
bin110010100011…
…001000111010
3220221020010121
4302203020322
511343014010
61152003454
7220430014
oct62431072
926836117
1013251130
117530852
12453058a
13298c609
141a8d1b4
15126b3da
hexca323a

13251130 has 16 divisors (see below), whose sum is σ = 24072840. Its totient is φ = 5251392.

The previous prime is 13251107. The next prime is 13251131. The reversal of 13251130 is 3115231.

It can be written as a sum of positive squares in 4 ways, for example, as 8450649 + 4800481 = 2907^2 + 2191^2 .

It is not an unprimeable number, because it can be changed into a prime (13251131) 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 7 ways as a sum of consecutive naturals, for example, 4989 + ... + 7168.

Almost surely, 213251130 is an apocalyptic number.

13251130 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

13251130 is a deficient number, since it is larger than the sum of its proper divisors (10821710).

13251130 is a wasteful number, since it uses less digits than its factorization.

13251130 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12273.

The product of its (nonzero) digits is 90, while the sum is 16.

The square root of 13251130 is about 3640.2101587683. The cubic root of 13251130 is about 236.6379012406.

Adding to 13251130 its reverse (3115231), we get a palindrome (16366361).

The spelling of 13251130 in words is "thirteen million, two hundred fifty-one thousand, one hundred thirty".

Divisors: 1 2 5 10 109 218 545 1090 12157 24314 60785 121570 1325113 2650226 6625565 13251130