21328877880

Names of 21328877880

• Cardinal: 21328877880 can be written as Twenty-one billion, three hundred twenty-eight million, eight hundred seventy-seven thousand, eight hundred eighty.

Scientific notation

• Scientific notation: 2.132887788 × 10¹⁰

Factors of 21328877880

• Number of distinct prime factors ω(n): 6
• Total number of prime factors Ω(n): 13
• Sum of prime factors: 447

Divisors of 21328877880

• Number of divisors d(n): 448
• Complete list of divisors:
  1 2 3 4 5 6 8 9 10 12 15 18 19 20 24 27 30 36 38 40 45 54 57 60 72 76 81 90 95 108 114 120 135 137 152 162 171 180 190 216 228 243 270 274 281 285 324 342 360 380 405 411 456 486 513 540 548 562 570 648 684 685 729 760 810 822 843 855 972 1026 1080 1096 1124 1140 1215 1233 1368 1370 1405 1458 1539 1620 1644 1686 1710 1944 2052 2055 2248 2280 2430 2466 2529 2565 2603 2740 2810 2916 3078 3240 3288 3372 3420 3645 3699 4104 4110 4215 4617 4860 4932 5058 5130 5206 5339 5480 5620 5832 6156 6165 6744 6840 7290 7398 7587 7695 7809 8220 8430 9234 9720 9864 10116 10260 10412 10678 11097 11240 12312 12330 12645 13015 13851 14580 14796 15174 15390 15618 16017 16440 16860 18468 18495 20232 20520 20824 21356 22194 22761 23085 23427 24660 25290 26030 26695 27702 29160 29592 30348 30780 31236 32034 33291 33720 36936 36990 37935 38497 39045 42712 44388 45522 46170 46854 48051 49320 50580 52060 53390 55404 55485 60696 61560 62472 64068 66582 68283 69255 70281 73980 75870 76994 78090 80085 88776 91044 92340 93708 96102 99873 101160 104120 106780 110808 110970 113805 115491 117135 128136 133164 136566 138510 140562 144153 147960 151740 153988 156180 160170 166455 182088 184680 187416 192204 192485 199746 204849 210843 213560 221940 227610 230982 234270 240255 266328 273132 277020 281124 288306 303480 307976 312360 320340 332910 341415 346473 351405 384408 384970 399492 409698 421686 432459 443880 455220 461964 468540 480510 499365 546264 554040 562248 576612 577455 632529 640680 665820 682830 692946 702810 720765 731443 769940 798984 819396 843372 864918 910440 923928 937080 961020 998730 1024245 1039419 1054215 1153224 1154910 1265058 1297377 1331640 1365660 1385892 1405620 1441530 1462886 1539880 1638792 1686744 1729836 1732365 1897587 1922040 1997460 2048490 2078838 2108430 2162295 2194329 2309820 2530116 2594754 2731320 2771784 2811240 2883060 2925772 3118257 3162645 3459672 3464730 3657215 3795174 3892131 3994920 4096980 4157676 4216860 4324590 4388658 4619640 5060232 5189508 5197095 5766120 5851544 6236514 6325290 6486885 6582987 6929460 7314430 7590348 7784262 8193960 8315352 8433720 8649180 8777316 9354771 9487935 10379016 10394190 10971645 12473028 12650580 12973770 13165974 13858920 14628860 15180696 15568524 15591285 17298360 17554632 18709542 18975870 19460655 19748961 20788380 21943290 24946056 25301160 25947540 26331948 28064313 29257720 31137048 31182570 32914935 37419084 37951740 38921310 39497922 41576760 43886580 46773855 51895080 52663896 56128626 59246883 62365140 65829870 74838168 75903480 77842620 78995844 87773160 93547710 98744805 112257252 118493766 124730280 131659740 140321565 155685240 157991688 177740649 187095420 197489610 224514504 236987532 263319480 280643130 296234415 355481298 374190840 394979220 473975064 533221947 561286260 592468830 710962596 789958440 888703245 1066443894 1122572520 1184937660 1421925192 1777406490 2132887788 2369875320 2666109735 3554812980 4265775576 5332219470 7109625960 10664438940 21328877880
• Sum of all divisors σ(n): 76563338400
• Sum of proper divisors (its aliquot sum) s(n): 55234460520
• 21328877880 is an abundant number, because the sum of its proper divisors (55234460520) is greater than itself. Its abundance is 33905582640

Bases of 21328877880

• Binary: 10011110111010011001101100100111000₂
• Hexadecimal: 0x4F74CD938
• Base-36: 9SQNVI0

Squares and roots of 21328877880

• 21328877880 squared (21328877880²) is 454921031619953294400
• 21328877880 cubed (21328877880³) is 9702955128465602387561287872000
• The square root of 21328877880 is 146044.0956697669
• The cube root of 21328877880 is 2773.2520065345

Scales and comparisons

• 21,328,877,880 seconds is equal to 678 years, 10 weeks, 18 minutes.
• To count from 1 to 21,328,877,880 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 21328877880 cubic inches would be around 231.1 feet tall.

Recreational maths with 21328877880

• 21328877880 backwards is 08877882312
• 21328877880 is a Harshad number.
• The number of decimal digits it has is: 11
• The sum of 21328877880's digits is 54
• More coming soon!