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11963424905 = 54349550169
BaseRepresentation
bin10110010010001001…
…10110000010001001
31010212202021221202022
423021010312002021
5144000114044110
65255041414225
7602315301545
oct131104660211
933782257668
1011963424905
11508a050223
12239a63a375
1311886c9b63
14816c1aa25
154a0448755
hex2c9136089

11963424905 has 8 divisors (see below), whose sum is σ = 14359437000. Its totient is φ = 9568521856.

The previous prime is 11963424881. The next prime is 11963424911. The reversal of 11963424905 is 50942436911.

It can be written as a sum of positive squares in 4 ways, for example, as 236267641 + 11727157264 = 15371^2 + 108292^2 .

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 11963424905 - 210 = 11963423881 is a prime.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 253340 + ... + 296829.

It is an arithmetic number, because the mean of its divisors is an integer number (1794929625).

Almost surely, 211963424905 is an apocalyptic number.

It is an amenable number.

11963424905 is a deficient number, since it is larger than the sum of its proper divisors (2396012095).

11963424905 is an equidigital number, since it uses as much as digits as its factorization.

11963424905 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 554523.

The product of its (nonzero) digits is 233280, while the sum is 44.

The spelling of 11963424905 in words is "eleven billion, nine hundred sixty-three million, four hundred twenty-four thousand, nine hundred five".

Divisors: 1 5 4349 21745 550169 2750845 2392684981 11963424905