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132840231 = 3222119937
BaseRepresentation
bin1111110101011…
…11101100100111
3100020221222112120
413322233230213
5233001341411
621103121023
73202060206
oct772575447
9306858476
10132840231
1168a91917
12385a3173
13216a14b4
14138dd23d
15b9e0106
hex7eafb27

132840231 has 8 divisors (see below), whose sum is σ = 177208944. Its totient is φ = 88515840.

The previous prime is 132840223. The next prime is 132840241. The reversal of 132840231 is 132048231.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 132840231 - 23 = 132840223 is a prime.

It is a super-2 number, since 2×1328402312 = 35293053944266722, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (132840241) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 3306 + ... + 16631.

It is an arithmetic number, because the mean of its divisors is an integer number (22151118).

Almost surely, 2132840231 is an apocalyptic number.

132840231 is a deficient number, since it is larger than the sum of its proper divisors (44368713).

132840231 is a wasteful number, since it uses less digits than its factorization.

132840231 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 22161.

The product of its (nonzero) digits is 1152, while the sum is 24.

The square root of 132840231 is about 11525.6336485245. The cubic root of 132840231 is about 510.2423953477.

Adding to 132840231 its reverse (132048231), we get a palindrome (264888462).

The spelling of 132840231 in words is "one hundred thirty-two million, eight hundred forty thousand, two hundred thirty-one".

Divisors: 1 3 2221 6663 19937 59811 44280077 132840231