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6503130823 = 72789333101
BaseRepresentation
bin1100000111001110…
…11110011011000111
3121210012210021102011
412003213132123013
5101304300141243
62553144355051
7320103462040
oct60347363307
917705707364
106503130823
112837936492
121315a75a87
137c83a8c07
1445997b8c7
15280dbd89d
hex1839de6c7

6503130823 has 8 divisors (see below), whose sum is σ = 7434836640. Its totient is φ = 5572096800.

The previous prime is 6503130811. The next prime is 6503130833. The reversal of 6503130823 is 3280313056.

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

It is a cyclic number.

It is not a de Polignac number, because 6503130823 - 225 = 6469576391 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (6503130833) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 147028 + ... + 186073.

It is an arithmetic number, because the mean of its divisors is an integer number (929354580).

Almost surely, 26503130823 is an apocalyptic number.

6503130823 is a deficient number, since it is larger than the sum of its proper divisors (931705817).

6503130823 is a wasteful number, since it uses less digits than its factorization.

6503130823 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 335897.

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

The square root of 6503130823 is about 80641.9916854736. The cubic root of 6503130823 is about 1866.5551670256. Note that the first 3 decimals are identical.

Adding to 6503130823 its reverse (3280313056), we get a palindrome (9783443879).

The spelling of 6503130823 in words is "six billion, five hundred three million, one hundred thirty thousand, eight hundred twenty-three".

Divisors: 1 7 2789 19523 333101 2331707 929018689 6503130823