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132240023 = 643205661
BaseRepresentation
bin1111110000111…
…01001010010111
3100012211111012122
413320131022113
5232323140043
621042210155
73164010266
oct770351227
9305744178
10132240023
1168711983
123835395b
1321521246
14137c45dd
15b922368
hex7e1d297

132240023 has 4 divisors (see below), whose sum is σ = 132446328. Its totient is φ = 132033720.

The previous prime is 132239969. The next prime is 132240049. The reversal of 132240023 is 320042231.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 320042231 = 2911035939.

It is a cyclic number.

It is not a de Polignac number, because 132240023 - 26 = 132239959 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 132239983 and 132240010.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (132240083) 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, 102188 + ... + 103473.

It is an arithmetic number, because the mean of its divisors is an integer number (33111582).

Almost surely, 2132240023 is an apocalyptic number.

132240023 is a deficient number, since it is larger than the sum of its proper divisors (206305).

132240023 is an equidigital number, since it uses as much as digits as its factorization.

132240023 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 206304.

The product of its (nonzero) digits is 288, while the sum is 17.

The square root of 132240023 is about 11499.5662092098. The cubic root of 132240023 is about 509.4727641173.

Adding to 132240023 its reverse (320042231), we get a palindrome (452282254).

The spelling of 132240023 in words is "one hundred thirty-two million, two hundred forty thousand, twenty-three".

Divisors: 1 643 205661 132240023