21040409280
21,040,409,280 is an even composite number composed of six prime numbers multiplied together.
21040409280 is an even composite number. It is composed of six distinct prime numbers multiplied together. It has a total of three hundred thirty-six divisors.
Prime factorization of 21040409280:
26 × 3 × 5 × 112 × 31 × 5843
(2 × 2 × 2 × 2 × 2 × 2 × 3 × 5 × 11 × 11 × 31 × 5843)See below for interesting mathematical facts about the number 21040409280 from the Numbermatics database.
Names of 21040409280
- Cardinal: 21040409280 can be written as Twenty-one billion, forty million, four hundred nine thousand, two hundred eighty.
Scientific notation
- Scientific notation: 2.104040928 × 1010
Factors of 21040409280
Divisors of 21040409280
- Number of divisors d(n): 336
-
Complete list of divisors:
1 2 3 4 5 6 8 10 11 12 15 16 20 22 24 30 31 32 33 40 44 48 55 60 62 64 66 80 88 93 96 110 120 121 124 132 155 160 165 176 186 192 220 240 242 248 264 310 320 330 341 352 363 372 440 465 480 484 496 528 605 620 660 682 704 726 744 880 930 960 968 992 1023 1056 1210 1240 1320 1364 1452 1488 1705 1760 1815 1860 1936 1984 2046 2112 2420 2480 2640 2728 2904 2976 3410 3520 3630 3720 3751 3872 4092 4840 4960 5115 5280 5456 5808 5843 5952 6820 7260 7440 7502 7744 8184 9680 9920 10230 10560 10912 11253 11616 11686 13640 14520 14880 15004 16368 17529 18755 19360 20460 21824 22506 23232 23372 27280 29040 29215 29760 30008 32736 35058 37510 38720 40920 45012 46744 54560 56265 58080 58430 60016 64273 65472 70116 75020 81840 87645 90024 93488 109120 112530 116160 116860 120032 128546 140232 150040 163680 175290 180048 181133 186976 192819 225060 233720 240064 257092 280464 300080 321365 327360 350580 360096 362266 373952 385638 450120 467440 514184 543399 560928 600160 642730 701160 707003 720192 724532 771276 900240 905665 934880 964095 1028368 1086798 1121856 1200320 1285460 1402320 1414006 1449064 1542552 1800480 1811330 1869760 1928190 1992463 2056736 2121009 2173596 2570920 2716995 2804640 2828012 2898128 3085104 3535015 3600960 3622660 3856380 3984926 4113472 4242018 4347192 5141840 5433990 5609280 5656024 5796256 5977389 6170208 7070030 7245320 7712760 7969852 8484036 8694384 9962315 10283680 10605045 10867980 11312048 11592512 11954778 12340416 14140060 14490640 15425520 15939704 16968072 17388768 19924630 20567360 21210090 21735960 21917093 22624096 23909556 28280120 28981280 29886945 30851040 31879408 33936144 34777536 39849260 42420180 43471920 43834186 45248192 47819112 56560240 57962560 59773890 61702080 63758816 65751279 67872288 79698520 84840360 86943840 87668372 95638224 109585465 113120480 119547780 127517632 131502558 135744576 159397040 169680720 173887680 175336744 191276448 219170930 226240960 239095560 263005116 318794080 328756395 339361440 350673488 382552896 438341860 478191120 526010232 637588160 657512790 678722880 701346976 876683720 956382240 1052020464 1315025580 1402693952 1753367440 1912764480 2104040928 2630051160 3506734880 4208081856 5260102320 7013469760 10520204640 21040409280
- Sum of all divisors σ(n): 75810051072
- Sum of proper divisors (its aliquot sum) s(n): 54769641792
- 21040409280 is an abundant number, because the sum of its proper divisors (54769641792) is greater than itself. Its abundance is 33729232512
Bases of 21040409280
- Binary: 100111001100001101100101010110000002
- Hexadecimal: 0x4E61B2AC0
- Base-36: 9NYWZPC
Squares and roots of 21040409280
- 21040409280 squared (210404092802) is 442698822669910118400
- 21040409280 cubed (210404092803) is 9314564416749051231949258752000
-
The
square root of 21040409280 is 145053.1257160631 -
The
cube root of 21040409280 is 2760.6926637901
Scales and comparisons
How big is 21040409280?- 21,040,409,280 seconds is equal to 669 years, 1 week, 6 hours, 8 minutes.
-
To count from 1 to 21,040,409,280 would take you about one thousand, three hundred thirty-eight 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 21040409280 cubic inches would be around 230.1 feet tall.
Recreational maths with 21040409280
- 21040409280 backwards is 08290404012
- 21040409280 is a
Harshad number . - The number of decimal digits it has is: 11
- The sum of 21040409280's digits is 30
- More coming soon!
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