21721910056

Names of 21721910056

• Cardinal: 21721910056 can be written as Twenty-one billion, seven hundred twenty-one million, nine hundred ten thousand and fifty-six.

Scientific notation

• Scientific notation: 2.1721910056 × 10¹⁰

Factors of 21721910056

• Number of distinct prime factors ω(n): 7
• Total number of prime factors Ω(n): 10
• Sum of prime factors: 230

Divisors of 21721910056

• Number of divisors d(n): 384
• Complete list of divisors:
  1 2 4 7 8 11 14 19 22 23 28 31 38 44 46 56 62 76 77 88 92 124 133 137 152 154 161 184 209 217 248 253 266 274 308 322 341 361 418 434 437 506 532 548 589 616 644 682 713 722 836 868 874 959 1012 1064 1096 1178 1288 1364 1426 1444 1463 1507 1672 1736 1748 1771 1918 2024 2356 2387 2527 2603 2728 2852 2888 2926 3014 3059 3151 3496 3542 3836 3971 4123 4247 4712 4774 4807 4991 5054 5206 5704 5852 6028 6118 6302 6479 7084 7672 7843 7942 8246 8303 8494 9548 9614 9982 10108 10412 10549 11191 11704 12056 12236 12604 12958 13547 14168 15686 15884 16492 16606 16988 18221 19096 19228 19964 20216 20824 21098 22057 22382 24472 25208 25916 27094 27797 28633 29729 31372 31768 32984 33212 33649 33976 34661 36442 38456 39928 42196 44114 44764 45353 46717 49457 51832 54188 54901 55594 57266 58121 59458 59869 62744 66424 67298 69322 72884 78337 80693 84392 88228 89528 90706 91333 93434 94829 97681 98914 108376 109802 111188 114532 116242 118916 119738 123101 134596 138644 145768 149017 156674 161386 176456 181412 182666 186868 189658 195362 197828 200431 219604 222376 229064 232484 237832 239476 242627 246202 257393 269192 277288 298034 313348 322772 327019 346199 362824 365332 373736 379316 390724 395656 400862 419083 439208 464968 478952 485254 492404 514786 544027 564851 596068 626696 639331 645544 654038 658559 683767 692398 730664 758632 781448 801724 838166 861707 887623 970508 984808 1029572 1043119 1074491 1088054 1129702 1137511 1192136 1278662 1308076 1317118 1367534 1384796 1533167 1603448 1676332 1723414 1775246 1801751 1855939 1941016 2059144 2086238 2148982 2176108 2259404 2275022 2557324 2616152 2634236 2735068 2769592 2831323 3066334 3352664 3446828 3550492 3603502 3711878 3808189 4172476 4297964 4352216 4518808 4550044 4609913 5114648 5268472 5470136 5662646 6132668 6213361 6893656 7100984 7207004 7423756 7521437 7616378 7962577 8344952 8595928 9100088 9219826 10732169 11325292 12265336 12426722 12512621 12991573 14414008 14847512 15042874 15232756 15925154 16864837 18439652 19819261 20415329 21464338 22650584 24853444 25025242 25983146 30085748 30465512 31850308 33729674 35262841 36879304 39638522 40830658 42928676 49706888 50050484 51966292 60171496 63700616 67459348 70525682 79277044 81661316 85857352 87588347 100100968 103932584 118053859 134918696 141051364 142907303 158554088 163322632 175176694 236107718 246839887 282102728 285814606 350353388 387891251 472215436 493679774 571629212 700706776 775782502 944430872 987359548 1143258424 1551565004 1974719096 2715238757 3103130008 5430477514 10860955028 21721910056
• Sum of all divisors σ(n): 58147061760
• Sum of proper divisors (its aliquot sum) s(n): 36425151704
• 21721910056 is an abundant number, because the sum of its proper divisors (36425151704) is greater than itself. Its abundance is 14703241648

Bases of 21721910056

• Binary: 10100001110101110100000101100101000₂
• Hexadecimal: 0x50EBA0B28
• Base-36: 9Z8NX2G

Squares and roots of 21721910056

• 21721910056 squared (21721910056²) is 471841376480953923136
• 21721910056 cubed (21721910056³) is 10249295940618514915440529455616
• The square root of 21721910056 is 147383.5474400043
• The cube root of 21721910056 is 2790.1828845999

Scales and comparisons

• 21,721,910,056 seconds is equal to 690 years, 35 weeks, 5 days, 23 hours, 54 minutes, 16 seconds.
• To count from 1 to 21,721,910,056 would take you about one thousand, three hundred eighty-one 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 21721910056 cubic inches would be around 232.5 feet tall.

Recreational maths with 21721910056

• 21721910056 backwards is 65001912712
• The number of decimal digits it has is: 11
• The sum of 21721910056's digits is 34
• More coming soon!