1221981012
1,221,981,012 is an even composite number composed of five prime numbers multiplied together.
1221981012 is an even composite number. It is composed of five distinct prime numbers multiplied together. It has a total of two hundred eighty-eight divisors.
Prime factorization of 1221981012:
22 × 33 × 72 × 173 × 47
(2 × 2 × 3 × 3 × 3 × 7 × 7 × 17 × 17 × 17 × 47)See below for interesting mathematical facts about the number 1221981012 from the Numbermatics database.
Names of 1221981012
- Cardinal: 1221981012 can be written as One billion, two hundred twenty-one million, nine hundred eighty-one thousand and twelve.
Scientific notation
- Scientific notation: 1.221981012 × 109
Factors of 1221981012
Divisors of 1221981012
- Number of divisors d(n): 288
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Complete list of divisors:
1 2 3 4 6 7 9 12 14 17 18 21 27 28 34 36 42 47 49 51 54 63 68 84 94 98 102 108 119 126 141 147 153 188 189 196 204 238 252 282 289 294 306 329 357 378 423 441 459 476 564 578 588 612 658 714 756 799 833 846 867 882 918 987 1071 1156 1269 1316 1323 1428 1598 1666 1692 1734 1764 1836 1974 2023 2142 2303 2397 2499 2538 2601 2646 2961 3196 3213 3332 3468 3948 4046 4284 4606 4794 4913 4998 5076 5202 5292 5593 5922 6069 6426 6909 7191 7497 7803 8092 8883 9212 9588 9826 9996 10404 11186 11844 12138 12852 13583 13818 14161 14382 14739 14994 15606 16779 17766 18207 19652 20727 21573 22372 22491 24276 27166 27636 28322 28764 29478 29988 31212 33558 34391 35532 36414 39151 40749 41454 42483 43146 44217 44982 50337 54332 54621 56644 58956 62181 67116 68782 72828 78302 81498 82908 84966 86292 88434 89964 95081 100674 103173 109242 117453 122247 124362 127449 132651 137564 151011 156604 162996 169932 176868 190162 201348 206346 218484 230911 234906 240737 244494 248724 254898 265302 285243 302022 309519 352359 366741 380324 382347 412692 461822 469812 481474 488988 509796 530604 570486 604044 619038 665567 692733 704718 722211 733482 764694 855729 923644 928557 962948 1057077 1140972 1238076 1331134 1385466 1409436 1444422 1466964 1529388 1616377 1711458 1857114 1996701 2078199 2114154 2166633 2567187 2662268 2770932 2888844 3232754 3422916 3714228 3993402 4156398 4228308 4333266 4849131 5134374 5990103 6234597 6465508 6499899 7986804 8312796 8666532 9698262 10268748 11314639 11980206 12469194 12999798 14547393 17970309 19396524 22629278 23960412 24938388 25999596 29094786 33943917 35940618 43642179 45258556 58189572 67887834 71881236 87284358 101831751 135775668 174568716 203663502 305495253 407327004 610990506 1221981012
- Sum of all divisors σ(n): 3998937600
- Sum of proper divisors (its aliquot sum) s(n): 2776956588
- 1221981012 is an abundant number, because the sum of its proper divisors (2776956588) is greater than itself. Its abundance is 1554975576
Bases of 1221981012
- Binary: 10010001101010111110011010101002
- Hexadecimal: 0x48D5F354
- Base-36: K7JAL0
Squares and roots of 1221981012
- 1221981012 squared (12219810122) is 1493237593688544144
- 1221981012 cubed (12219810123) is 1824707985891971985891793728
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The
square root of 1221981012 is 34956.8449949361 -
The
cube root of 1221981012 is 1069.1077699105
Scales and comparisons
How big is 1221981012?- 1,221,981,012 seconds is equal to 38 years, 44 weeks, 3 days, 7 hours, 10 minutes, 12 seconds.
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To count from 1 to 1,221,981,012 would take you about seventy-seven 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 1221981012 cubic inches would be around 89.1 feet tall.
Recreational maths with 1221981012
- 1221981012 backwards is 2101891221
- 1221981012 is a
Harshad number . - The number of decimal digits it has is: 10
- The sum of 1221981012's digits is 27
- More coming soon!
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"Number 1221981012 - Facts about the integer". Numbermatics.com. 2024. Web. 28 April 2024.
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Numbermatics. (2024). Number 1221981012 - Facts about the integer. Retrieved 28 April 2024, from https://numbermatics.com/n/1221981012/
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Numbermatics. 2024. "Number 1221981012 - Facts about the integer". https://numbermatics.com/n/1221981012/
The information we have on file for 1221981012 includes mathematical data and numerical statistics calculated using standard algorithms and methods. We are adding more all the time. If there are any features you would like to see, please contact us. Information provided for educational use, intellectual curiosity and fun!
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