21811977000

Names of 21811977000

• Cardinal: 21811977000 can be written as Twenty-one billion, eight hundred eleven million, nine hundred seventy-seven thousand.

Scientific notation

• Scientific notation: 2.1811977 × 10¹⁰

Factors of 21811977000

• Number of distinct prime factors ω(n): 5
• Total number of prime factors Ω(n): 12
• Sum of prime factors: 292

Divisors of 21811977000

• Number of divisors d(n): 384
• Complete list of divisors:
  1 2 3 4 5 6 8 9 10 11 12 15 18 20 22 24 25 27 30 33 36 40 44 45 50 54 55 60 66 72 75 88 90 99 100 108 110 120 125 132 135 150 165 180 198 200 216 220 225 250 264 270 271 275 297 300 330 360 375 396 440 450 495 500 540 542 550 594 600 660 675 750 792 813 825 900 990 1000 1080 1084 1100 1125 1188 1320 1350 1355 1375 1485 1500 1626 1650 1800 1980 2168 2200 2250 2376 2439 2475 2700 2710 2750 2970 2981 3000 3252 3300 3375 3960 4065 4125 4500 4878 4950 5400 5420 5500 5940 5962 6504 6600 6750 6775 7317 7425 8130 8250 8943 9000 9756 9900 10840 11000 11880 11924 12195 12375 13500 13550 14634 14850 14905 16260 16500 17886 19512 19800 20325 23848 24390 24750 26829 27000 27100 29268 29700 29810 32520 33000 33875 35772 36585 37125 40650 44715 48780 49500 53658 54200 58536 59400 59620 60975 67750 71544 73170 73441 74250 74525 80487 81300 89430 97560 99000 101625 107316 119240 121950 134145 135500 146340 146882 148500 149050 160974 162600 178860 182925 203250 214632 220323 223575 243900 268290 271000 292680 293764 297000 298100 304875 321948 357720 365850 367205 372625 402435 406500 440646 447150 487800 536580 587528 596200 609750 643896 660969 670725 731700 734410 745250 804870 807851 813000 881292 894300 914625 1073160 1101615 1117875 1219500 1321938 1341450 1463400 1468820 1490500 1609740 1615702 1762584 1788600 1829250 1836025 1982907 2012175 2203230 2235750 2423553 2439000 2643876 2682900 2937640 2981000 3219480 3231404 3304845 3353625 3658500 3672050 3965814 4024350 4039255 4406460 4471500 4847106 5287752 5365800 5508075 6462808 6609690 6707250 7270659 7317000 7344100 7931628 8048700 8078510 8812920 8943000 9180125 9694212 9914535 10060875 11016150 12117765 13219380 13414500 14541318 14688200 15863256 16097400 16157020 16524225 18360250 19388424 19829070 20121750 20196275 21811977 22032300 24235530 26438760 26829000 27540375 29082636 32314040 33048450 36353295 36720500 39658140 40243500 40392550 43623954 44064600 48471060 49572675 55080750 58165272 60588825 66096900 72706590 73441000 79316280 80487000 80785100 82621125 87247908 96942120 99145350 100981375 109059885 110161500 121177650 132193800 145413180 161570200 165242250 174495816 181766475 198290700 201962750 218119770 220323000 242355300 247863375 290826360 302944125 330484500 363532950 396581400 403925500 436239540 484710600 495726750 545299425 605888250 660969000 727065900 807851000 872479080 908832375 991453500 1090598850 1211776500 1454131800 1817664750 1982907000 2181197700 2423553000 2726497125 3635329500 4362395400 5452994250 7270659000 10905988500 21811977000
• Sum of all divisors σ(n): 82794441600
• Sum of proper divisors (its aliquot sum) s(n): 60982464600
• 21811977000 is an abundant number, because the sum of its proper divisors (60982464600) is greater than itself. Its abundance is 39170487600

Bases of 21811977000

• Binary: 10100010100000110000101101100101000₂
• Hexadecimal: 0x514185B28
• Base-36: A0QAD60

Squares and roots of 21811977000

• 21811977000 squared (21811977000²) is 475762340648529000000
• 21811977000 cubed (21811977000³) is 10377317231691879631833000000000
• The square root of 21811977000 is 147688.7842728755
• The cube root of 21811977000 is 2794.0339380799

Scales and comparisons

• 21,811,977,000 seconds is equal to 693 years, 28 weeks, 5 days, 10 hours, 30 minutes.
• To count from 1 to 21,811,977,000 would take you about one thousand, three hundred eighty-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 21811977000 cubic inches would be around 232.8 feet tall.

Recreational maths with 21811977000

• 21811977000 backwards is 00077911812
• 21811977000 is a Harshad number.
• The number of decimal digits it has is: 11
• The sum of 21811977000's digits is 36
• More coming soon!