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6668052523 = 11647936919
BaseRepresentation
bin1100011010111001…
…00110100000101011
3122012201010011110021
412031130212200223
5102124010140043
63021355301311
7324145340236
oct61534464053
918181104407
106668052523
112911a3a610
12136114a837
13823600912
1447382c41d
152905e93ed
hex18d72682b

6668052523 has 8 divisors (see below), whose sum is σ = 7285489920. Its totient is φ = 6052490280.

The previous prime is 6668052499. The next prime is 6668052551. The reversal of 6668052523 is 3252508666.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2k-6668052523 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 6668052523.

It is not an unprimeable number, because it can be changed into a prime (6668052553) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 461343 + ... + 475576.

It is an arithmetic number, because the mean of its divisors is an integer number (910686240).

Almost surely, 26668052523 is an apocalyptic number.

6668052523 is a deficient number, since it is larger than the sum of its proper divisors (617437397).

6668052523 is a wasteful number, since it uses less digits than its factorization.

6668052523 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 937577.

The product of its (nonzero) digits is 518400, while the sum is 43.

The square root of 6668052523 is about 81658.1442539567. The cubic root of 6668052523 is about 1882.2024628004.

The spelling of 6668052523 in words is "six billion, six hundred sixty-eight million, fifty-two thousand, five hundred twenty-three".

Divisors: 1 11 647 7117 936919 10306109 606186593 6668052523