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132816641 = 479277279
BaseRepresentation
bin1111110101010…
…01111100000001
3100020220210011212
413322221330001
5233000113031
621102415505
73201631346
oct772517401
9306823155
10132816641
1168a76121
1238591595
1321693839
14138d47cd
15b9d812b
hex7ea9f01

132816641 has 4 divisors (see below), whose sum is σ = 133094400. Its totient is φ = 132538884.

The previous prime is 132816613. The next prime is 132816653. The reversal of 132816641 is 146618231.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2k-132816641 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 132816598 and 132816607.

It is not an unprimeable number, because it can be changed into a prime (132816601) 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, 138161 + ... + 139118.

It is an arithmetic number, because the mean of its divisors is an integer number (33273600).

Almost surely, 2132816641 is an apocalyptic number.

It is an amenable number.

132816641 is a deficient number, since it is larger than the sum of its proper divisors (277759).

132816641 is an equidigital number, since it uses as much as digits as its factorization.

132816641 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 277758.

The product of its digits is 6912, while the sum is 32.

The square root of 132816641 is about 11524.6102320209. The cubic root of 132816641 is about 510.2121903148.

It can be divided in two parts, 13281 and 6641, that multiplied together give a triangular number (88199121 = T13281).

The spelling of 132816641 in words is "one hundred thirty-two million, eight hundred sixteen thousand, six hundred forty-one".

Divisors: 1 479 277279 132816641