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A058230 Numbers k such that the product of the lengths of the words in the name of k in American English is equal to k. 1
4, 24, 84672, 1852200, 829785600, 20910597120, 92215733299200, 1239789303244800000, 887165996513213819259682435576627200000000 (list; graph; refs; listen; history; text; internal format)
OFFSET
1,1
COMMENTS
This sequence uses American English spellings; e.g., 84672 ends in "six hundred seventy-two", not "six hundred and seventy-two" (cf. A006944). Also, for purposes of this sequence, hyphens are treated as spaces, so "seventy-two" is counted as two words ("seventy two"). - Jon E. Schoenfield, Nov 18 2018
a(10) > 10^138 if it exists. - Jonathan Pappas, Mar 12 2021
LINKS
Jonathan Pappas, Python program
EXAMPLE
84672 = "eighty four thousand six hundred seventy two" = 6*4*8*3*7*7*3 = 84672.
MATHEMATICA
Select[Range[10^5], Times@@StringLength/@StringSplit[StringReplace[#~IntegerName~"Words", {", "->"", "-"->" "}]]==#&] (* Giorgos Kalogeropoulos, Mar 20 2021 *)
PROG
(Python)
# See Python program link.
# Jonathan Pappas, Mar 12 2021
CROSSREFS
Sequence in context: A077093 A077092 A092435 * A162187 A103644 A185070
KEYWORD
dumb,nonn,word
AUTHOR
Michael Kleber, Dec 01 2000
EXTENSIONS
a(7)-a(9) from Jonathan Pappas, Mar 12 2021
STATUS
approved

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Last modified July 22 00:08 EDT 2024. Contains 374478 sequences. (Running on oeis4.)