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132421343 = 731813991
BaseRepresentation
bin1111110010010…
…01011011011111
3100020011200221012
413321021123133
5232344440333
621050125435
73165364025
oct771113337
9306150835
10132421343
116882612a
123842087b
1321585932
1413830715
15b95ae48
hex7e496df

132421343 has 4 divisors (see below), whose sum is σ = 134235408. Its totient is φ = 130607280.

The previous prime is 132421339. The next prime is 132421357. The reversal of 132421343 is 343124231.

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 132421343 - 22 = 132421339 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (132421543) 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, 906923 + ... + 907068.

It is an arithmetic number, because the mean of its divisors is an integer number (33558852).

Almost surely, 2132421343 is an apocalyptic number.

132421343 is a deficient number, since it is larger than the sum of its proper divisors (1814065).

132421343 is an equidigital number, since it uses as much as digits as its factorization.

132421343 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1814064.

The product of its digits is 1728, while the sum is 23.

The square root of 132421343 is about 11507.4472842590. The cubic root of 132421343 is about 509.7055111346.

Adding to 132421343 its reverse (343124231), we get a palindrome (475545574).

The spelling of 132421343 in words is "one hundred thirty-two million, four hundred twenty-one thousand, three hundred forty-three".

Divisors: 1 73 1813991 132421343