Search a number
-
+
13797232 = 243127817
BaseRepresentation
bin110100101000…
…011101110000
3221221222020121
4310220131300
512013002412
61211420024
7225163111
oct64503560
927858217
1013797232
117874079
124754614
132b21057
141b92208
151328107
hexd28770

13797232 has 20 divisors (see below), whose sum is σ = 27595456. Its totient is φ = 6675840.

The previous prime is 13797229. The next prime is 13797239. The reversal of 13797232 is 23279731.

13797232 is an admirable number.

It is a super-2 number, since 2×137972322 = 380727221723648, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (13797239) 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, 13413 + ... + 14404.

Almost surely, 213797232 is an apocalyptic number.

It is an amenable number.

13797232 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

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

13797232 is a wasteful number, since it uses less digits than its factorization.

13797232 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 27856 (or 27850 counting only the distinct ones).

The product of its digits is 15876, while the sum is 34.

The square root of 13797232 is about 3714.4625452412. The cubic root of 13797232 is about 239.8449925003.

The spelling of 13797232 in words is "thirteen million, seven hundred ninety-seven thousand, two hundred thirty-two".

Divisors: 1 2 4 8 16 31 62 124 248 496 27817 55634 111268 222536 445072 862327 1724654 3449308 6898616 13797232