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66560341 = 89747869
BaseRepresentation
bin1111110111101…
…0000101010101
311122020121121211
43331322011111
5114014412331
610334341421
71435516321
oct375720525
9148217554
1066560341
1134631851
121a35a871
1310a36023
148ba8981
155c9b8b1
hex3f7a155

66560341 has 4 divisors (see below), whose sum is σ = 67308300. Its totient is φ = 65812384.

The previous prime is 66560323. The next prime is 66560353. The reversal of 66560341 is 14306566.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 3437316 + 63123025 = 1854^2 + 7945^2 .

It is a cyclic number.

It is not a de Polignac number, because 66560341 - 25 = 66560309 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (66560311) 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, 373846 + ... + 374023.

It is an arithmetic number, because the mean of its divisors is an integer number (16827075).

Almost surely, 266560341 is an apocalyptic number.

It is an amenable number.

66560341 is a deficient number, since it is larger than the sum of its proper divisors (747959).

66560341 is an equidigital number, since it uses as much as digits as its factorization.

66560341 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 747958.

The product of its (nonzero) digits is 12960, while the sum is 31.

The square root of 66560341 is about 8158.4521203473. The cubic root of 66560341 is about 405.2644536089.

The spelling of 66560341 in words is "sixty-six million, five hundred sixty thousand, three hundred forty-one".

Divisors: 1 89 747869 66560341