21516179472

Names of 21516179472

• Cardinal: 21516179472 can be written as Twenty-one billion, five hundred sixteen million, one hundred seventy-nine thousand, four hundred seventy-two.

Scientific notation

• Scientific notation: 2.1516179472 × 10¹⁰

Factors of 21516179472

• Number of distinct prime factors ω(n): 6
• Total number of prime factors Ω(n): 12
• Sum of prime factors: 231

Divisors of 21516179472

• Number of divisors d(n): 480
• Complete list of divisors:
  1 2 3 4 6 8 9 12 16 17 18 23 24 27 34 36 46 48 51 54 59 68 69 72 92 102 108 118 127 136 138 144 153 177 184 204 207 216 236 254 272 276 289 306 354 368 381 391 408 414 432 459 472 508 531 552 578 612 621 708 762 782 816 828 867 918 944 1003 1016 1062 1104 1143 1156 1173 1224 1242 1357 1416 1524 1564 1593 1656 1734 1836 2006 2032 2124 2159 2286 2312 2346 2448 2484 2601 2714 2832 2921 3009 3048 3128 3186 3312 3429 3468 3519 3672 4012 4071 4248 4318 4572 4624 4692 4968 5202 5428 5842 6018 6096 6256 6372 6477 6647 6858 6936 7038 7344 7493 7803 8024 8142 8496 8636 8763 9027 9144 9384 9936 10404 10557 10856 11684 12036 12213 12744 12954 13294 13716 13872 14076 14986 15606 16048 16284 17051 17272 17526 18054 18288 18768 19431 19941 20808 21114 21712 22479 23069 23368 24072 24426 25488 25908 26289 26588 27081 27432 28152 29972 31212 32568 34102 34544 35052 36108 36639 36703 38862 39882 41616 42228 44958 46138 46736 48144 48852 49657 51153 51816 52578 53176 54162 54864 56304 58293 59823 59944 62424 65136 67437 68204 69207 70104 72216 73278 73406 77724 78867 79764 84456 89916 92276 97704 99314 102306 103632 105156 106352 108324 110109 116586 119646 119888 124848 127381 134874 136408 138414 140208 144432 146556 146812 148971 153459 155448 157734 159528 168912 172339 179469 179832 184552 195408 198628 202311 204612 207621 210312 216648 220218 233172 239292 254762 269748 272816 276828 293112 293624 297942 306918 310896 315468 319056 330327 344678 358938 359664 369104 382143 392173 397256 404622 409224 415242 420624 433296 440436 446913 460377 466344 478584 509524 517017 539496 553656 586224 587248 595884 613836 622863 630936 660654 689356 717876 764286 784346 794512 809244 818448 830484 844169 880872 893826 920754 932688 957168 990981 1019048 1034034 1078992 1107312 1146429 1176519 1191768 1227672 1245726 1261872 1321308 1340739 1378712 1435752 1528572 1551051 1568692 1618488 1660968 1688338 1761744 1787652 1841508 1981962 2038096 2068068 2165477 2292858 2353038 2383536 2455344 2491452 2532507 2642616 2681478 2757424 2871504 2929763 3057144 3102102 3137384 3236976 3321936 3376676 3439287 3529557 3575304 3683016 3963924 4136136 4330954 4585716 4653153 4706076 4982904 5065014 5285232 5362956 5859526 6114288 6204204 6274768 6496431 6753352 6878574 7059114 7150608 7366032 7597521 7927848 8272272 8661908 8789289 9171432 9306306 9412152 9965808 10130028 10588671 10725912 11719052 12408408 12992862 13506704 13757148 14118228 15195042 15855696 17323816 17578578 18342864 18612612 18824304 19489293 20260056 21177342 21451824 22792563 23438104 24816816 25985724 26367867 27514296 28236456 30390084 34647632 35157156 37225224 38978586 40520112 42354684 45585126 46876208 49805971 51971448 52735734 55028592 56472912 58467879 60780168 70314312 74450448 77957172 79103601 84709368 91170252 99611942 103942896 105471468 116935758 121560336 140628624 149417913 155914344 158207202 169418736 182340504 199223884 210942936 233871516 298835826 311828688 316414404 364681008 398447768 421885872 448253739 467743032 597671652 632828808 796895536 896507478 935486064 1195343304 1265657616 1344761217 1793014956 2390686608 2689522434 3586029912 5379044868 7172059824 10758089736 21516179472
• Sum of all divisors σ(n): 70166937600
• Sum of proper divisors (its aliquot sum) s(n): 48650758128
• 21516179472 is an abundant number, because the sum of its proper divisors (48650758128) is greater than itself. Its abundance is 27134578656

Bases of 21516179472

• Binary: 10100000010011101101101100000010000₂
• Hexadecimal: 0x50276D810
• Base-36: 9VU6EC0

Squares and roots of 21516179472

• 21516179472 squared (21516179472²) is 462945979071314198784
• 21516179472 cubed (21516179472³) is 9960828771539152187938428162048
• The square root of 21516179472 is 146683.9441520441
• The cube root of 21516179472 is 2781.3462189211

Scales and comparisons

• 21,516,179,472 seconds is equal to 684 years, 7 weeks, 4 days, 20 hours, 31 minutes, 12 seconds.
• To count from 1 to 21,516,179,472 would take you about one thousand, three hundred sixty-eight 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 21516179472 cubic inches would be around 231.8 feet tall.

Recreational maths with 21516179472

• 21516179472 backwards is 27497161512
• The number of decimal digits it has is: 11
• The sum of 21516179472's digits is 45
• More coming soon!