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12117504001 = 17712794353
BaseRepresentation
bin10110100100100001…
…00111000000000001
31011021111012222112111
423102100213000001
5144304040112001
65322224055321
7606166041001
oct132220470001
934244188474
1012117504001
115159019119
122422164541
1311b15c6615
1482d488001
154adc31851
hex2d2427001

12117504001 has 4 divisors (see below), whose sum is σ = 12830298372. Its totient is φ = 11404709632.

The previous prime is 12117503971. The next prime is 12117504013. The reversal of 12117504001 is 10040571121.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 9643436401 + 2474067600 = 98201^2 + 49740^2 .

It is a cyclic number.

It is not a de Polignac number, because 12117504001 - 213 = 12117495809 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (12117504031) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 356397160 + ... + 356397193.

It is an arithmetic number, because the mean of its divisors is an integer number (3207574593).

Almost surely, 212117504001 is an apocalyptic number.

It is an amenable number.

12117504001 is a deficient number, since it is larger than the sum of its proper divisors (712794371).

12117504001 is an equidigital number, since it uses as much as digits as its factorization.

12117504001 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 712794370.

The product of its (nonzero) digits is 280, while the sum is 22.

The spelling of 12117504001 in words is "twelve billion, one hundred seventeen million, five hundred four thousand, one".

Divisors: 1 17 712794353 12117504001