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Calculate heptagonal number 45

Heptagonal number = A figurate number

This is found by combining heptagons of ascending size.

Heptagonal Number Image:

Heptagonal Number

Heptagonal Number Formula:

Hn  =  n(5n - 3)
  2

Given n = 45, we have:

H45  =  45(5(45) - 3)
  2

H45  =  45(225 - 3)
  2

H45  =  45(222)
  2

H45  =  9990
  2

H45 = 4,995


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Heptagonal Number List 1 - 45

nHeptagonal number Hn
11
27
318
434
555
681
7112
8148
9189
10235
11286
12342
13403
14469
15540
16616
17697
18783
19874
20970
211071
221177
231288
241404
251525
261651
271782
281918
292059
302205
312356
322512
332673
342839
353010
363186
373367
383553
393744
403940
414141
424347
434558
444774
454995


What is the Answer?
H45 = 4,995
How does the Heptagonal Number Calculator work?
Free Heptagonal Number Calculator - This calculator determines the nth heptagonal number
This calculator has 1 input.

What 1 formula is used for the Heptagonal Number Calculator?

Hn = n(5n - 3)/2

For more math formulas, check out our Formula Dossier

What 4 concepts are covered in the Heptagonal Number Calculator?

formula
a fact or a rule written with mathematical symbols. A concise way of expressing information symbolically.
heptagon
seven sided figure
heptagonal number
number
an arithmetical value, expressed by a word, symbol, or figure, representing a particular quantity and used in counting and making calculations and for showing order in a series or for identification. A quantity or amount.
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