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132523643 = 7193233421
BaseRepresentation
bin1111110011000…
…10011001111011
3100020100220021002
413321202121323
5232411224033
621052235215
73166301210
oct771423173
9306326232
10132523643
1168895a7a
123846bb0b
13215c0375
1413859b07
15b97b3e8
hex7e6267b

132523643 has 16 divisors (see below), whose sum is σ = 153256896. Its totient is φ = 112250880.

The previous prime is 132523639. The next prime is 132523663. The reversal of 132523643 is 346325231.

It is not a de Polignac number, because 132523643 - 22 = 132523639 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (132523663) 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 15 ways as a sum of consecutive naturals, for example, 314573 + ... + 314993.

It is an arithmetic number, because the mean of its divisors is an integer number (9578556).

Almost surely, 2132523643 is an apocalyptic number.

132523643 is a deficient number, since it is larger than the sum of its proper divisors (20733253).

132523643 is a wasteful number, since it uses less digits than its factorization.

132523643 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 854.

The product of its digits is 12960, while the sum is 29.

The square root of 132523643 is about 11511.8913737057. The cubic root of 132523643 is about 509.8367323083.

Adding to 132523643 its reverse (346325231), we get a palindrome (478848874).

The spelling of 132523643 in words is "one hundred thirty-two million, five hundred twenty-three thousand, six hundred forty-three".

Divisors: 1 7 193 233 421 1351 1631 2947 44969 81253 98093 314783 568771 686651 18931949 132523643