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13251215230 = 2511120465593
BaseRepresentation
bin11000101011101010…
…10111111101111110
31021012111111110222021
430111311113331332
5204114302341410
610030523310354
7646243320361
oct142565277576
937174443867
1013251215230
11568aa69150
12269997b3ba
13133244b576
148d9c800d8
15528525eda
hex315d57f7e

13251215230 has 16 divisors (see below), whose sum is σ = 26020568304. Its totient is φ = 4818623680.

The previous prime is 13251215209. The next prime is 13251215291. The reversal of 13251215230 is 3251215231.

It is a junction number, because it is equal to n+sod(n) for n = 13251215195 and 13251215204.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 60232687 + ... + 60232906.

It is an arithmetic number, because the mean of its divisors is an integer number (1626285519).

Almost surely, 213251215230 is an apocalyptic number.

13251215230 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

13251215230 is a deficient number, since it is larger than the sum of its proper divisors (12769353074).

13251215230 is a wasteful number, since it uses less digits than its factorization.

13251215230 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 120465611.

The product of its (nonzero) digits is 1800, while the sum is 25.

Subtracting from 13251215230 its reverse (3251215231), we obtain a palindrome (9999999999).

The spelling of 13251215230 in words is "thirteen billion, two hundred fifty-one million, two hundred fifteen thousand, two hundred thirty".

Divisors: 1 2 5 10 11 22 55 110 120465593 240931186 602327965 1204655930 1325121523 2650243046 6625607615 13251215230