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12331054505 = 571132028713
BaseRepresentation
bin10110111101111110…
…01111010110101001
31011211101001110202102
423132333033112221
5200223222221010
65355333143145
7614401143140
oct133677172651
934741043672
1012331054505
115258616840
12248178aab5
131216916573
1484d996757
154c2865ba5
hex2defcf5a9

12331054505 has 16 divisors (see below), whose sum is σ = 18448539264. Its totient is φ = 7686890880.

The previous prime is 12331054451. The next prime is 12331054517. The reversal of 12331054505 is 50545013321.

It is not a de Polignac number, because 12331054505 - 28 = 12331054249 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 16013972 + ... + 16014741.

It is an arithmetic number, because the mean of its divisors is an integer number (1153033704).

Almost surely, 212331054505 is an apocalyptic number.

It is an amenable number.

12331054505 is a deficient number, since it is larger than the sum of its proper divisors (6117484759).

12331054505 is a wasteful number, since it uses less digits than its factorization.

12331054505 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 32028736.

The product of its (nonzero) digits is 9000, while the sum is 29.

Adding to 12331054505 its reverse (50545013321), we get a palindrome (62876067826).

The spelling of 12331054505 in words is "twelve billion, three hundred thirty-one million, fifty-four thousand, five hundred five".

Divisors: 1 5 7 11 35 55 77 385 32028713 160143565 224200991 352315843 1121004955 1761579215 2466210901 12331054505