21017613440
21,017,613,440 is an even composite number composed of six prime numbers multiplied together.
21017613440 is an even composite number. It is composed of six distinct prime numbers multiplied together. It has a total of two hundred fifty-six divisors.
Prime factorization of 21017613440:
27 × 5 × 23 × 61 × 89 × 263
(2 × 2 × 2 × 2 × 2 × 2 × 2 × 5 × 23 × 61 × 89 × 263)See below for interesting mathematical facts about the number 21017613440 from the Numbermatics database.
Names of 21017613440
- Cardinal: 21017613440 can be written as Twenty-one billion, seventeen million, six hundred thirteen thousand, four hundred forty.
Scientific notation
- Scientific notation: 2.101761344 × 1010
Factors of 21017613440
Divisors of 21017613440
- Number of divisors d(n): 256
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Complete list of divisors:
1 2 4 5 8 10 16 20 23 32 40 46 61 64 80 89 92 115 122 128 160 178 184 230 244 263 305 320 356 368 445 460 488 526 610 640 712 736 890 920 976 1052 1220 1315 1403 1424 1472 1780 1840 1952 2047 2104 2440 2630 2806 2848 2944 3560 3680 3904 4094 4208 4880 5260 5429 5612 5696 6049 7015 7120 7360 7808 8188 8416 9760 10235 10520 10858 11224 11392 12098 14030 14240 14720 16043 16376 16832 19520 20470 21040 21716 22448 23407 24196 27145 28060 28480 30245 32086 32752 33664 39040 40940 42080 43432 44896 46814 48392 54290 56120 56960 60490 64172 65504 80215 81880 84160 86864 89792 93628 96784 108580 112240 117035 120980 124867 128344 131008 160430 163760 168320 173728 179584 187256 193568 217160 224480 234070 241960 249734 256688 262016 320860 327520 347456 368989 374512 387136 434320 448960 468140 483920 499468 513376 538361 624335 641720 655040 694912 737978 749024 774272 868640 897920 936280 967840 998936 1026752 1076722 1248670 1283440 1310080 1427827 1475956 1498048 1737280 1844945 1872560 1935680 1997872 2053504 2153444 2497340 2566880 2691805 2855654 2951912 2996096 3474560 3689890 3745120 3871360 3995744 4306888 4994680 5133760 5383610 5711308 5903824 7139135 7379780 7490240 7991488 8613776 9989360 10267520 10767220 11422616 11807648 14278270 14759560 14980480 15982976 17227552 19978720 21534440 22845232 23615296 28556540 29519120 32840021 34455104 39957440 43068880 45690464 47230592 57113080 59038240 65680042 68910208 79914880 86137760 91380928 114226160 118076480 131360084 164200105 172275520 182761856 228452320 236152960 262720168 328400210 344551040 456904640 525440336 656800420 913809280 1050880672 1313600840 2101761344 2627201680 4203522688 5254403360 10508806720 21017613440
- Sum of all divisors σ(n): 54092966400
- Sum of proper divisors (its aliquot sum) s(n): 33075352960
- 21017613440 is an abundant number, because the sum of its proper divisors (33075352960) is greater than itself. Its abundance is 12057739520
Bases of 21017613440
- Binary: 100111001001011111101010100100000002
- Hexadecimal: 0x4E4BF5480
- Base-36: 9NLCEBK
Squares and roots of 21017613440
- 21017613440 squared (210176134402) is 441740074713268633600
- 21017613440 cubed (210176134403) is 9284322131280198979881795584000
-
The
square root of 21017613440 is 144974.5268659291 -
The
cube root of 21017613440 is 2759.6952964747
Scales and comparisons
How big is 21017613440?- 21,017,613,440 seconds is equal to 668 years, 15 weeks, 2 days, 9 hours, 57 minutes, 20 seconds.
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To count from 1 to 21,017,613,440 would take you about one thousand, three hundred thirty-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 21017613440 cubic inches would be around 230 feet tall.
Recreational maths with 21017613440
- 21017613440 backwards is 04431671012
- The number of decimal digits it has is: 11
- The sum of 21017613440's digits is 29
- More coming soon!
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