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132279893 = 1091213577
BaseRepresentation
bin1111110001001…
…10111001010101
3100012220111220022
413320212321111
5232330424033
621043114525
73164234444
oct770467125
9305814808
10132279893
1168739929
1238372a45
1321536435
14137d4d5b
15b92e098
hex7e26e55

132279893 has 4 divisors (see below), whose sum is σ = 133493580. Its totient is φ = 131066208.

The previous prime is 132279871. The next prime is 132279929. The reversal of 132279893 is 398972231.

It is a happy number.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 398972231 = 756996033.

It can be written as a sum of positive squares in 2 ways, for example, as 115820644 + 16459249 = 10762^2 + 4057^2 .

It is a cyclic number.

It is not a de Polignac number, because 132279893 - 218 = 132017749 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (132279803) 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, 606680 + ... + 606897.

It is an arithmetic number, because the mean of its divisors is an integer number (33373395).

Almost surely, 2132279893 is an apocalyptic number.

It is an amenable number.

132279893 is a deficient number, since it is larger than the sum of its proper divisors (1213687).

132279893 is a wasteful number, since it uses less digits than its factorization.

132279893 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1213686.

The product of its digits is 163296, while the sum is 44.

The square root of 132279893 is about 11501.2996222166. The cubic root of 132279893 is about 509.5239605140.

The spelling of 132279893 in words is "one hundred thirty-two million, two hundred seventy-nine thousand, eight hundred ninety-three".

Divisors: 1 109 1213577 132279893