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13247332141 = 40133035741
BaseRepresentation
bin11000101011001101…
…00011111100101101
31021012020012012101011
430111212203330231
5204112304112031
610030304145221
7646165315411
oct142546437455
937166165334
1013247332141
11568885678a
122698608211
1313316bbc94
148d954cd41
1552800a6b1
hex3159a3f2d

13247332141 has 4 divisors (see below), whose sum is σ = 13280368284. Its totient is φ = 13214296000.

The previous prime is 13247332129. The next prime is 13247332159. The reversal of 13247332141 is 14123374231.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 14123374231 = 79178776889.

It can be written as a sum of positive squares in 2 ways, for example, as 8638958916 + 4608373225 = 92946^2 + 67885^2 .

It is a cyclic number.

It is not a de Polignac number, because 13247332141 - 211 = 13247330093 is a prime.

It is a Smith number, since the sum of its digits (31) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (13247332121) 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, 16517470 + ... + 16518271.

It is an arithmetic number, because the mean of its divisors is an integer number (3320092071).

Almost surely, 213247332141 is an apocalyptic number.

It is an amenable number.

13247332141 is a deficient number, since it is larger than the sum of its proper divisors (33036143).

13247332141 is an equidigital number, since it uses as much as digits as its factorization.

13247332141 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 33036142.

The product of its digits is 12096, while the sum is 31.

The spelling of 13247332141 in words is "thirteen billion, two hundred forty-seven million, three hundred thirty-two thousand, one hundred forty-one".

Divisors: 1 401 33035741 13247332141