129029940
129,029,940 is an even composite number composed of six prime numbers multiplied together.
129029940 is an even composite number. It is composed of six distinct prime numbers multiplied together. It has a total of one hundred forty-four divisors.
Prime factorization of 129029940:
22 × 32 × 5 × 13 × 67 × 823
(2 × 2 × 3 × 3 × 5 × 13 × 67 × 823)See below for interesting mathematical facts about the number 129029940 from the Numbermatics database.
Names of 129029940
- Cardinal: 129029940 can be written as One hundred twenty-nine million, twenty-nine thousand, nine hundred forty.
Scientific notation
- Scientific notation: 1.2902994 × 108
Factors of 129029940
Divisors of 129029940
- Number of divisors d(n): 144
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Complete list of divisors:
1 2 3 4 5 6 9 10 12 13 15 18 20 26 30 36 39 45 52 60 65 67 78 90 117 130 134 156 180 195 201 234 260 268 335 390 402 468 585 603 670 780 804 823 871 1005 1170 1206 1340 1646 1742 2010 2340 2412 2469 2613 3015 3292 3484 4020 4115 4355 4938 5226 6030 7407 7839 8230 8710 9876 10452 10699 12060 12345 13065 14814 15678 16460 17420 21398 24690 26130 29628 31356 32097 37035 39195 42796 49380 52260 53495 55141 64194 74070 78390 96291 106990 110282 128388 148140 156780 160485 165423 192582 213980 220564 275705 320970 330846 385164 481455 496269 551410 641940 661692 716833 827115 962910 992538 1102820 1433666 1654230 1925820 1985076 2150499 2481345 2867332 3308460 3584165 4300998 4962690 6451497 7168330 8601996 9925380 10752495 12902994 14336660 21504990 25805988 32257485 43009980 64514970 129029940
- Sum of all divisors σ(n): 428308608
- Sum of proper divisors (its aliquot sum) s(n): 299278668
- 129029940 is an abundant number, because the sum of its proper divisors (299278668) is greater than itself. Its abundance is 170248728
Bases of 129029940
- Binary: 1111011000011010111001101002
- Hexadecimal: 0x7B0D734
- Base-36: 24TK50
Squares and roots of 129029940
- 129029940 squared (1290299402) is 16648725416403600
- 129029940 cubed (1290299403) is 2148184041555031523784000
-
The
square root of 129029940 is 11359.1346501395 -
The
cube root of 129029940 is 505.3165221529
Scales and comparisons
How big is 129029940?- 129,029,940 seconds is equal to 4 years, 5 weeks, 2 days, 9 hours, 39 minutes.
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To count from 1 to 129,029,940 would take you about six years!
This is a very rough estimate, based on a speaking rate of half a second every third order of magnitude. If you speak quickly, you could probably say any randomly-chosen number between one and a thousand in around half a second. Very big numbers obviously take longer to say, so we add half a second for every extra x1000. (We do not count involuntary pauses, bathroom breaks or the necessity of sleep in our calculation!)
- A cube with a volume of 129029940 cubic inches would be around 42.1 feet tall.
Recreational maths with 129029940
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