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132542243 = 816716229
BaseRepresentation
bin1111110011001…
…10111100100011
3100020101211202222
413321212330203
5232412322433
621052501255
73166406351
oct771467443
9306354688
10132542243
11688a8a49
123847a82b
13215c8982
14138627d1
15b981b98
hex7e66f23

132542243 has 4 divisors (see below), whose sum is σ = 132566640. Its totient is φ = 132517848.

The previous prime is 132542239. The next prime is 132542257. The reversal of 132542243 is 342245231.

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 132542243 - 22 = 132542239 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (132542273) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 53 + ... + 16281.

It is an arithmetic number, because the mean of its divisors is an integer number (33141660).

Almost surely, 2132542243 is an apocalyptic number.

132542243 is a deficient number, since it is larger than the sum of its proper divisors (24397).

132542243 is an equidigital number, since it uses as much as digits as its factorization.

132542243 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 24396.

The product of its digits is 5760, while the sum is 26.

The square root of 132542243 is about 11512.6992056598. The cubic root of 132542243 is about 509.8605834476.

Adding to 132542243 its reverse (342245231), we get a palindrome (474787474).

The spelling of 132542243 in words is "one hundred thirty-two million, five hundred forty-two thousand, two hundred forty-three".

Divisors: 1 8167 16229 132542243