21347508672

Names of 21347508672

• Cardinal: 21347508672 can be written as Twenty-one billion, three hundred forty-seven million, five hundred eight thousand, six hundred seventy-two.

Scientific notation

• Scientific notation: 2.1347508672 × 10¹⁰

Factors of 21347508672

• Number of distinct prime factors ω(n): 7
• Total number of prime factors Ω(n): 13
• Sum of prime factors: 252

Divisors of 21347508672

• Number of divisors d(n): 672
• Complete list of divisors:
  1 2 3 4 6 7 8 9 12 14 16 18 19 21 24 28 31 32 36 38 42 48 56 57 62 63 64 72 76 84 89 93 96 101 112 114 124 126 133 144 152 168 171 178 186 192 202 217 224 228 248 252 266 267 279 288 303 304 336 342 356 372 399 404 434 448 456 496 504 532 534 558 576 589 606 608 623 651 672 684 707 712 744 798 801 808 868 909 912 992 1008 1064 1068 1116 1178 1197 1212 1216 1246 1302 1344 1368 1414 1424 1488 1596 1602 1616 1691 1736 1767 1818 1824 1869 1919 1953 1984 2016 2121 2128 2136 2232 2356 2394 2424 2492 2604 2736 2759 2828 2848 2976 3131 3192 3204 3232 3382 3472 3534 3636 3648 3738 3838 3906 4032 4123 4242 4256 4272 4464 4712 4788 4848 4984 5073 5208 5301 5472 5518 5607 5656 5696 5757 5952 6262 6363 6384 6408 6464 6764 6944 7068 7272 7476 7676 7812 8246 8277 8484 8512 8544 8928 8989 9393 9424 9576 9696 9968 10146 10416 10602 10944 11036 11214 11312 11514 11837 12369 12524 12726 12768 12816 13433 13528 13888 14136 14544 14952 15219 15352 15624 16492 16554 16968 17088 17271 17856 17978 18786 18848 19152 19313 19392 19936 20292 20832 21204 21917 22072 22428 22624 23028 23674 24738 24831 25048 25452 25536 25632 26866 26967 27056 28179 28272 29088 29904 30438 30704 31248 32984 33108 33936 34542 35511 35956 37107 37572 37696 38304 38626 39872 40299 40584 41664 42408 43834 44144 44856 45248 46056 47348 49476 49662 50096 50904 51264 52421 53732 53934 54112 56358 56544 57939 58176 59489 59808 60876 61408 62496 62923 65751 65968 66216 67872 69084 71022 71912 74214 75144 76608 77252 80598 80901 81168 84816 87668 88288 89712 92112 94696 98952 99324 100192 101808 104842 106533 107464 107868 108224 112716 113088 115878 118978 119616 120897 121752 122816 124992 125846 131502 131936 132432 135744 138168 142044 143824 148428 150288 154504 157263 161196 161802 162336 169632 170791 173817 175336 176576 178467 179424 184224 188769 189392 197253 197904 198648 200384 203616 209684 213066 214928 215736 225432 231756 237956 241794 243504 251692 263004 263872 264864 276336 278659 284088 287648 296856 300576 309008 314526 322392 323604 324672 339264 341582 347634 350672 356934 358848 366947 368448 377538 378784 394506 395808 397296 407232 416423 419368 426132 429856 431472 450864 463512 471789 475912 483588 487008 503384 512373 526008 529728 535401 552672 557318 566307 568176 575296 593712 601152 618016 629052 644784 647208 683164 695268 701344 713868 733894 755076 757568 789012 791616 794592 832846 835977 838736 852264 859712 862944 901728 927024 943578 951824 967176 974016 1006768 1024746 1052016 1070802 1100841 1105344 1114636 1132614 1136352 1187424 1195537 1236032 1249269 1258104 1289568 1294416 1366328 1390536 1402688 1427736 1467788 1510152 1537119 1578024 1589184 1665692 1671954 1677472 1704528 1725888 1803456 1854048 1887156 1903648 1934352 1950613 2013536 2049492 2104032 2141604 2201682 2229272 2265228 2272704 2374848 2391074 2498538 2507931 2516208 2579136 2588832 2732656 2781072 2855472 2935576 3020304 3074238 3156048 3302523 3331384 3343908 3354944 3409056 3586611 3708096 3747807 3774312 3807296 3868704 3901226 4027072 4098984 4208064 4283208 4403364 4458544 4530456 4782148 4997076 5015862 5032416 5177664 5294521 5465312 5562144 5710944 5851839 5871152 6040608 6148476 6312096 6605046 6662768 6687816 6818112 7173222 7495614 7548624 7737408 7802452 8197968 8566416 8806728 8917088 9060912 9564296 9994152 10031724 10064832 10589042 10759833 10930624 11124288 11421888 11703678 11742304 12081216 12296952 12624192 13210092 13325536 13375632 14346444 14991228 15097248 15604904 15883563 16395936 17132832 17555517 17613456 17834176 18121824 19128592 19988304 20063448 21178084 21519666 23407356 23484608 24593904 26420184 26651072 26751264 28692888 29982456 30194496 31209808 31767126 32791872 34265664 35111034 35226912 36243648 37061647 38257184 39976608 40126896 42356168 43039332 46814712 47650689 49187808 52840368 53502528 57385776 59964912 62419616 63534252 70222068 70453824 74123294 76514368 79953216 80253792 84712336 86078664 93629424 95301378 98375616 105680736 111184941 114771552 119929824 124839232 127068504 140444136 148246588 160507584 169424672 172157328 187258848 190602756 211361472 222369882 229543104 239859648 254137008 280888272 296493176 333554823 338849344 344314656 374517696 381205512 444739764 508274016 561776544 592986352 667109646 688629312 762411024 889479528 1016548032 1123553088 1185972704 1334219292 1524822048 1778959056 2371945408 2668438584 3049644096 3557918112 5336877168 7115836224 10673754336 21347508672
• Sum of all divisors σ(n): 77599641600
• Sum of proper divisors (its aliquot sum) s(n): 56252132928
• 21347508672 is an abundant number, because the sum of its proper divisors (56252132928) is greater than itself. Its abundance is 34904624256

Bases of 21347508672

• Binary: 10011111000011010010010000111000000₂
• Hexadecimal: 0x4F86921C0
• Base-36: 9T1R740

Squares and roots of 21347508672

• 21347508672 squared (21347508672²) is 455716126501115203584
• 21347508672 cubed (21347508672³) is 9728403962452805826180485480448
• The square root of 21347508672 is 146107.8665643983
• The cube root of 21347508672 is 2774.0592508239

Scales and comparisons

• 21,347,508,672 seconds is equal to 678 years, 40 weeks, 5 days, 15 hours, 31 minutes, 12 seconds.
• To count from 1 to 21,347,508,672 would take you about one thousand, three hundred fifty-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 21347508672 cubic inches would be around 231.2 feet tall.

Recreational maths with 21347508672

• 21347508672 backwards is 27680574312
• The number of decimal digits it has is: 11
• The sum of 21347508672's digits is 45
• More coming soon!