18221137920
18,221,137,920 is an even composite number composed of four prime numbers multiplied together.
What does the number 18221137920 look like?
This visualization shows the relationship between its 4 prime factors (large circles) and 320 divisors.
18221137920 is an even composite number. It is composed of four distinct prime numbers multiplied together. It has a total of three hundred twenty divisors.
Prime factorization of 18221137920:
215 × 34 × 5 × 1373
(2 × 2 × 2 × 2 × 2 × 2 × 2 × 2 × 2 × 2 × 2 × 2 × 2 × 2 × 2 × 3 × 3 × 3 × 3 × 5 × 1373)See below for interesting mathematical facts about the number 18221137920 from the Numbermatics database.
Names of 18221137920
- Cardinal: 18221137920 can be written as Eighteen billion, two hundred twenty-one million, one hundred thirty-seven thousand, nine hundred twenty.
Scientific notation
- Scientific notation: 1.822113792 × 1010
Factors of 18221137920
Divisors of 18221137920
- Number of divisors d(n): 320
-
Complete list of divisors:
1 2 3 4 5 6 8 9 10 12 15 16 18 20 24 27 30 32 36 40 45 48 54 60 64 72 80 81 90 96 108 120 128 135 144 160 162 180 192 216 240 256 270 288 320 324 360 384 405 432 480 512 540 576 640 648 720 768 810 864 960 1024 1080 1152 1280 1296 1373 1440 1536 1620 1728 1920 2048 2160 2304 2560 2592 2746 2880 3072 3240 3456 3840 4096 4119 4320 4608 5120 5184 5492 5760 6144 6480 6865 6912 7680 8192 8238 8640 9216 10240 10368 10984 11520 12288 12357 12960 13730 13824 15360 16384 16476 17280 18432 20480 20595 20736 21968 23040 24576 24714 25920 27460 27648 30720 32768 32952 34560 36864 37071 40960 41190 41472 43936 46080 49152 49428 51840 54920 55296 61440 61785 65904 69120 73728 74142 81920 82380 82944 87872 92160 98304 98856 103680 109840 110592 111213 122880 123570 131808 138240 147456 148284 163840 164760 165888 175744 184320 185355 197712 207360 219680 221184 222426 245760 247140 263616 276480 294912 296568 329520 331776 351488 368640 370710 395424 414720 439360 442368 444852 491520 494280 527232 552960 556065 593136 659040 663552 702976 737280 741420 790848 829440 878720 884736 889704 988560 1054464 1105920 1112130 1186272 1318080 1327104 1405952 1474560 1482840 1581696 1658880 1757440 1779408 1977120 2108928 2211840 2224260 2372544 2636160 2654208 2811904 2965680 3163392 3317760 3514880 3558816 3954240 4217856 4423680 4448520 4745088 5272320 5623808 5931360 6326784 6635520 7029760 7117632 7908480 8435712 8897040 9490176 10544640 11247616 11862720 12653568 13271040 14059520 14235264 15816960 16871424 17794080 18980352 21089280 22495232 23725440 25307136 28119040 28470528 31633920 33742848 35588160 37960704 42178560 44990464 47450880 50614272 56238080 56941056 63267840 67485696 71176320 75921408 84357120 94901760 101228544 112476160 113882112 126535680 134971392 142352640 151842816 168714240 189803520 202457088 224952320 227764224 253071360 284705280 303685632 337428480 379607040 404914176 455528448 506142720 569410560 607371264 674856960 759214080 911056896 1012285440 1138821120 1214742528 1518428160 1822113792 2024570880 2277642240 3036856320 3644227584 4555284480 6073712640 9110568960 18221137920
- Sum of all divisors σ(n): 65372735340
- Sum of proper divisors (its aliquot sum) s(n): 47151597420
- 18221137920 is an abundant number, because the sum of its proper divisors (47151597420) is greater than itself. Its abundance is 28930459500
Bases of 18221137920
- Binary: 100001111100001000010000000000000002
- Hexadecimal: 0x43E108000
- Base-36: 8DCE800
Squares and roots of 18221137920
- 18221137920 squared (182211379202) is 332009867099661926400
- 18221137920 cubed (182211379203) is 6049597579223810346307289088000
-
The
square root of 18221137920 is 134985.6952421255 -
The
cube root of 18221137920 is 2631.4300617051
Scales and comparisons
How big is 18221137920?- 18,221,137,920 seconds is equal to 579 years, 19 weeks, 3 days, 19 hours, 12 minutes.
-
To count from 1 to 18,221,137,920 would take you about one thousand, one hundred fifty-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 18221137920 cubic inches would be around 219.3 feet tall.
Recreational maths with 18221137920
- 18221137920 backwards is 02973112281
- 18221137920 is a
Harshad number . - The number of decimal digits it has is: 11
- The sum of 18221137920's digits is 36
- More coming soon!
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