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132113231 = 313422087
BaseRepresentation
bin1111101111111…
…10001101001111
3100012121001021122
413313332031033
5232310110411
621035351155
73162641525
oct767761517
9305531248
10132113231
1168635698
12382b24bb
13214a8613
1413790315
15b8e99db
hex7dfe34f

132113231 has 4 divisors (see below), whose sum is σ = 132535632. Its totient is φ = 131690832.

The previous prime is 132113209. The next prime is 132113249. The reversal of 132113231 is 132311231.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 132113231 - 214 = 132096847 is a prime.

It is a super-2 number, since 2×1321132312 = 34907811610518722, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (132113281) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 210731 + ... + 211356.

It is an arithmetic number, because the mean of its divisors is an integer number (33133908).

Almost surely, 2132113231 is an apocalyptic number.

132113231 is a deficient number, since it is larger than the sum of its proper divisors (422401).

132113231 is an equidigital number, since it uses as much as digits as its factorization.

132113231 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 422400.

The product of its digits is 108, while the sum is 17.

The square root of 132113231 is about 11494.0519835261. The cubic root of 132113231 is about 509.3098842127.

Adding to 132113231 its reverse (132311231), we get a palindrome (264424462).

The spelling of 132113231 in words is "one hundred thirty-two million, one hundred thirteen thousand, two hundred thirty-one".

Divisors: 1 313 422087 132113231