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6664510131 = 310091220147
BaseRepresentation
bin1100011010011110…
…00101101010110011
3122012110110012012120
412031033011222303
5102122103311011
63021151325323
7324103254456
oct61517055263
918173405176
106664510131
11290aa40114
12135bb20843
13822960426
1447318949d
15290149a06
hex18d3c5ab3

6664510131 has 8 divisors (see below), whose sum is σ = 8886934464. Its totient is φ = 4442546280.

The previous prime is 6664510117. The next prime is 6664510157. The reversal of 6664510131 is 1310154666.

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

It is not a de Polignac number, because 6664510131 - 26 = 6664510067 is a prime.

It is a super-2 number, since 2×66645101312 = 88831390572403274322, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 6664510092 and 6664510101.

It is not an unprimeable number, because it can be changed into a prime (6664511131) 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, 79801 + ... + 140346.

It is an arithmetic number, because the mean of its divisors is an integer number (1110866808).

Almost surely, 26664510131 is an apocalyptic number.

6664510131 is a deficient number, since it is larger than the sum of its proper divisors (2222424333).

6664510131 is a wasteful number, since it uses less digits than its factorization.

6664510131 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 230241.

The product of its (nonzero) digits is 12960, while the sum is 33.

The square root of 6664510131 is about 81636.4509946384. The cubic root of 6664510131 is about 1881.8690981000.

Adding to 6664510131 its reverse (1310154666), we get a palindrome (7974664797).

The spelling of 6664510131 in words is "six billion, six hundred sixty-four million, five hundred ten thousand, one hundred thirty-one".

Divisors: 1 3 10091 30273 220147 660441 2221503377 6664510131