21327981220

Names of 21327981220

• Cardinal: 21327981220 can be written as Twenty-one billion, three hundred twenty-seven million, nine hundred eighty-one thousand, two hundred twenty.

Scientific notation

• Scientific notation: 2.132798122 × 10¹⁰

Factors of 21327981220

• Number of distinct prime factors ω(n): 7
• Total number of prime factors Ω(n): 8
• Sum of prime factors: 1948

Divisors of 21327981220

• Number of divisors d(n): 192
• Complete list of divisors:
  1 2 4 5 7 10 13 14 20 26 28 35 52 53 65 70 91 106 127 130 140 182 212 254 260 265 364 371 455 508 530 635 689 742 889 910 1060 1270 1378 1484 1651 1741 1778 1820 1855 2540 2756 3302 3445 3482 3556 3710 4445 4823 6604 6731 6890 6964 7420 8255 8705 8890 9646 11557 12187 13462 13780 16510 17410 17780 19292 22633 23114 24115 24374 26924 33020 33655 34820 45266 46228 47117 48230 48748 57785 60935 67310 87503 90532 92273 94234 96460 113165 115570 121870 134620 158431 175006 184546 188468 221107 226330 231140 235585 243740 316862 350012 369092 437515 442214 452660 461365 471170 612521 633724 645911 792155 875030 884428 922730 942340 1105535 1199549 1225042 1291822 1547749 1584310 1750060 1845460 2211070 2399098 2450084 2583644 2874391 3062605 3095498 3168620 3229555 4422140 4798196 5748782 5997745 6125210 6190996 6459110 7738745 8396843 11497564 11718671 11995490 12250420 12918220 14371955 15477490 16793686 20120737 23437342 23990980 28743910 30954980 33587372 40241474 41984215 46874684 57487820 58593355 80482948 82030697 83968430 100603685 117186710 152342723 164061394 167936860 201207370 234373420 304685446 328122788 402414740 410153485 609370892 761713615 820306970 1066399061 1523427230 1640613940 2132798122 3046854460 4265596244 5331995305 10663990610 21327981220
• Sum of all divisors σ(n): 56639471616
• Sum of proper divisors (its aliquot sum) s(n): 35311490396
• 21327981220 is an abundant number, because the sum of its proper divisors (35311490396) is greater than itself. Its abundance is 13983509176

Bases of 21327981220

• Binary: 10011110111001111110010101010100100₂
• Hexadecimal: 0x4F73F2AA4
• Base-36: 9SQ4NMS

Squares and roots of 21327981220

• 21327981220 squared (21327981220²) is 454882782920672688400
• 21327981220 cubed (21327981220³) is 9701731451433443847962111848000
• The square root of 21327981220 is 146041.0258112425
• The cube root of 21327981220 is 2773.2131437463

Scales and comparisons

• 21,327,981,220 seconds is equal to 678 years, 8 weeks, 3 days, 15 hours, 13 minutes, 40 seconds.
• To count from 1 to 21,327,981,220 would take you about one thousand, three hundred fifty-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 21327981220 cubic inches would be around 231.1 feet tall.

Recreational maths with 21327981220

• 21327981220 backwards is 02218972312
• The number of decimal digits it has is: 11
• The sum of 21327981220's digits is 37
• More coming soon!