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16443422471213 = 472696679194729
BaseRepresentation
bin1110111101001000100001…
…0110101111010000101101
32011012222100101101021002222
43233102020112233100231
54123402112123034323
654550000510325125
73314666223565463
oct357221026572055
964188311337088
1016443422471213
11526a686340111
121a16a18ab97a5
139237b9c6bbaa
1440bc1a028833
151d7ae79a19c8
hexef4885af42d

16443422471213 has 16 divisors (see below), whose sum is σ = 16858321344000. Its totient is φ = 16031252103552.

The previous prime is 16443422471209. The next prime is 16443422471237. The reversal of 16443422471213 is 31217422434461.

It is a cyclic number.

It is not a de Polignac number, because 16443422471213 - 22 = 16443422471209 is a prime.

It is a super-3 number, since 3×164434224712133 (a number of 41 digits) contains 333 as substring. Note that it is a super-d number also for d = 2.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (16443422471243) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 84345233 + ... + 84539961.

It is an arithmetic number, because the mean of its divisors is an integer number (1053645084000).

Almost surely, 216443422471213 is an apocalyptic number.

It is an amenable number.

16443422471213 is a deficient number, since it is larger than the sum of its proper divisors (414898872787).

16443422471213 is a wasteful number, since it uses less digits than its factorization.

16443422471213 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 201724.

The product of its digits is 774144, while the sum is 44.

The spelling of 16443422471213 in words is "sixteen trillion, four hundred forty-three billion, four hundred twenty-two million, four hundred seventy-one thousand, two hundred thirteen".

Divisors: 1 47 269 6679 12643 194729 313913 1796651 9152263 52382101 84442597 1300594991 2461958747 61127964577 349860052579 16443422471213