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13134231 = 341114741
BaseRepresentation
bin110010000110…
…100110010111
3220201021210000
4302012212113
511330243411
61145302343
7216432135
oct62064627
926637700
1013134231
117460a40
1244949b3
13294b346
141a5c755
151246956
hexc86997

13134231 has 20 divisors (see below), whose sum is σ = 21405384. Its totient is φ = 7959600.

The previous prime is 13134203. The next prime is 13134271. The reversal of 13134231 is 13243131.

13134231 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 13134231 - 29 = 13133719 is a prime.

It is a super-2 number, since 2×131342312 = 345016047922722, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (13134271) by changing a digit.

It is a polite number, since it can be written in 19 ways as a sum of consecutive naturals, for example, 6480 + ... + 8261.

Almost surely, 213134231 is an apocalyptic number.

13134231 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

13134231 is a deficient number, since it is larger than the sum of its proper divisors (8271153).

13134231 is a wasteful number, since it uses less digits than its factorization.

13134231 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 14764 (or 14755 counting only the distinct ones).

The product of its digits is 216, while the sum is 18.

The square root of 13134231 is about 3624.1179616563. The cubic root of 13134231 is about 235.9399864159.

Adding to 13134231 its reverse (13243131), we get a palindrome (26377362).

Subtracting 13134231 from its reverse (13243131), we obtain a square (108900 = 3302).

The spelling of 13134231 in words is "thirteen million, one hundred thirty-four thousand, two hundred thirty-one".

Divisors: 1 3 9 11 27 33 81 99 297 891 14741 44223 132669 162151 398007 486453 1194021 1459359 4378077 13134231