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16445312341 = 6723663469
BaseRepresentation
bin11110101000011011…
…11000110101010101
31120110002202102111021
433110031320311111
5232134444443331
611315504041141
71121346564013
oct172415706525
946402672437
1016445312341
116a79a4a627
12322b6031b1
131721101363
14b2016d8b3
15663b5a211
hex3d4378d55

16445312341 has 6 divisors (see below), whose sum is σ = 16694432790. Its totient is φ = 16199855496.

The previous prime is 16445312333. The next prime is 16445312347. The reversal of 16445312341 is 14321354461.

It can be written as a sum of positive squares in only one way, i.e., 11305856241 + 5139456100 = 106329^2 + 71690^2 .

It is not a de Polignac number, because 16445312341 - 23 = 16445312333 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 16445312297 and 16445312306.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (16445312347) 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 5 ways as a sum of consecutive naturals, for example, 1827246 + ... + 1836223.

It is an arithmetic number, because the mean of its divisors is an integer number (2782405465).

Almost surely, 216445312341 is an apocalyptic number.

It is an amenable number.

16445312341 is a deficient number, since it is larger than the sum of its proper divisors (249120449).

16445312341 is an frugal number, since it uses more digits than its factorization.

16445312341 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3663603 (or 3663536 counting only the distinct ones).

The product of its digits is 34560, while the sum is 34.

The spelling of 16445312341 in words is "sixteen billion, four hundred forty-five million, three hundred twelve thousand, three hundred forty-one".

Divisors: 1 67 4489 3663469 245452423 16445312341