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13133212303 = 47279430049
BaseRepresentation
bin11000011101100110…
…01110101010001111
31020220021110022101111
430032303032222033
5203344100243203
610011110152451
7643311314461
oct141663165217
936807408344
1013133212303
11562a3a0872
122666352727
131313b73653
148c8324131
1551ceb726d
hex30eccea8f

13133212303 has 4 divisors (see below), whose sum is σ = 13412642400. Its totient is φ = 12853782208.

The previous prime is 13133212297. The next prime is 13133212331. The reversal of 13133212303 is 30321233131.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 30321233131 = 74331604733.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2k-13133212303 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 (13133212003) 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 3 ways as a sum of consecutive naturals, for example, 139714978 + ... + 139715071.

It is an arithmetic number, because the mean of its divisors is an integer number (3353160600).

Almost surely, 213133212303 is an apocalyptic number.

13133212303 is a deficient number, since it is larger than the sum of its proper divisors (279430097).

13133212303 is an equidigital number, since it uses as much as digits as its factorization.

13133212303 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 279430096.

The product of its (nonzero) digits is 972, while the sum is 22.

Adding to 13133212303 its reverse (30321233131), we get a palindrome (43454445434).

The spelling of 13133212303 in words is "thirteen billion, one hundred thirty-three million, two hundred twelve thousand, three hundred three".

Divisors: 1 47 279430049 13133212303