220820985
220,820,985 is an odd composite number composed of six prime numbers multiplied together.
220820985 is an odd composite number. It is composed of six distinct prime numbers multiplied together. It has a total of one hundred sixty divisors.
Prime factorization of 220820985:
34 × 5 × 7 × 11 × 73 × 97
(3 × 3 × 3 × 3 × 5 × 7 × 11 × 73 × 97)See below for interesting mathematical facts about the number 220820985 from the Numbermatics database.
Names of 220820985
- Cardinal: 220820985 can be written as Two hundred twenty million, eight hundred twenty thousand, nine hundred eighty-five.
Scientific notation
- Scientific notation: 2.20820985 × 108
Factors of 220820985
Divisors of 220820985
- Number of divisors d(n): 160
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Complete list of divisors:
1 3 5 7 9 11 15 21 27 33 35 45 55 63 73 77 81 97 99 105 135 165 189 219 231 291 297 315 365 385 405 485 495 511 567 657 679 693 803 873 891 945 1067 1095 1155 1455 1485 1533 1971 2037 2079 2409 2555 2619 2835 3201 3285 3395 3465 4015 4365 4455 4599 5335 5621 5913 6111 6237 7081 7227 7469 7665 7857 9603 9855 10185 10395 12045 13095 13797 16005 16863 18333 21243 21681 22407 22995 28105 28809 29565 30555 31185 35405 36135 37345 39285 41391 48015 49567 50589 54999 63729 65043 67221 68985 77891 84315 86427 91665 106215 108405 112035 144045 148701 151767 191187 201663 206955 233673 247835 252945 274995 318645 325215 336105 389455 432135 446103 455301 545237 573561 604989 701019 743505 758835 955935 1008315 1168365 1338309 1635711 2103057 2230515 2276505 2726185 2867805 3024945 3505095 4014927 4907133 6309171 6691545 8178555 10515285 14721399 20074635 24535665 31545855 44164197 73606995 220820985
- Sum of all divisors σ(n): 505435392
- Sum of proper divisors (its aliquot sum) s(n): 284614407
- 220820985 is an abundant number, because the sum of its proper divisors (284614407) is greater than itself. Its abundance is 63793422
Bases of 220820985
- Binary: 11010010100101110101111110012
- Hexadecimal: 0xD2975F9
- Base-36: 3NGYK9
Squares and roots of 220820985
- 220820985 squared (2208209852) is 48761907416370225
- 220820985 cubed (2208209853) is 10767652426161678209171625
-
The
square root of 220820985 is 14860.0466015421 -
The
cube root of 220820985 is 604.4310704675
Scales and comparisons
How big is 220820985?- 220,820,985 seconds is equal to 7 years, 1 week, 19 hours, 9 minutes, 45 seconds.
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To count from 1 to 220,820,985 would take you about ten 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 220820985 cubic inches would be around 50.4 feet tall.
Recreational maths with 220820985
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