Search a number
-
+
12648612271 = 89463306953
BaseRepresentation
bin10111100011110101…
…01000000110101111
31012122111121002010011
423301322220012233
5201401021043041
65451035354051
7625305300421
oct136172500657
935574532104
1012648612271
1154008a2679
12254bbb2927
131267650c79
1487dc1a811
154e0691e81
hex2f1ea81af

12648612271 has 8 divisors (see below), whose sum is σ = 12818399040. Its totient is φ = 12479440512.

The previous prime is 12648612259. The next prime is 12648612311. The reversal of 12648612271 is 17221684621.

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 12648612271 - 225 = 12615057839 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 (12648612071) 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, 112270 + ... + 194683.

It is an arithmetic number, because the mean of its divisors is an integer number (1602299880).

Almost surely, 212648612271 is an apocalyptic number.

12648612271 is a deficient number, since it is larger than the sum of its proper divisors (169786769).

12648612271 is an equidigital number, since it uses as much as digits as its factorization.

12648612271 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 307505.

The product of its digits is 64512, while the sum is 40.

The spelling of 12648612271 in words is "twelve billion, six hundred forty-eight million, six hundred twelve thousand, two hundred seventy-one".

Divisors: 1 89 463 41207 306953 27318817 142119239 12648612271