21298635072

Names of 21298635072

• Cardinal: 21298635072 can be written as Twenty-one billion, two hundred ninety-eight million, six hundred thirty-five thousand and seventy-two.

Scientific notation

• Scientific notation: 2.1298635072 × 10¹⁰

Factors of 21298635072

• Number of distinct prime factors ω(n): 6
• Total number of prime factors Ω(n): 15
• Sum of prime factors: 247

Divisors of 21298635072

• Number of divisors d(n): 672
• Complete list of divisors:
  1 2 3 4 6 8 9 11 12 13 16 18 22 24 26 27 32 33 36 39 44 48 52 54 61 64 66 72 78 81 88 96 99 104 108 117 122 132 143 144 156 157 162 176 183 192 198 208 216 234 243 244 264 286 288 297 312 314 324 351 352 366 396 416 429 432 468 471 486 488 528 549 572 576 594 624 628 648 671 702 704 732 792 793 832 858 864 891 936 942 972 976 1053 1056 1098 1144 1188 1248 1256 1287 1296 1342 1404 1413 1464 1584 1586 1647 1716 1727 1728 1782 1872 1884 1944 1952 2013 2041 2106 2112 2196 2288 2376 2379 2496 2512 2574 2592 2673 2684 2808 2826 2928 3159 3168 3172 3294 3432 3454 3564 3744 3768 3861 3888 3904 4026 4082 4212 4239 4392 4576 4752 4758 4941 5024 5148 5181 5184 5346 5368 5616 5652 5856 6039 6123 6318 6336 6344 6588 6864 6908 7128 7137 7488 7536 7722 7776 8052 8164 8424 8478 8723 8784 9152 9504 9516 9577 9882 10048 10296 10362 10692 10736 11232 11304 11583 11712 12078 12246 12636 12688 12717 13176 13728 13816 14256 14274 14823 15072 15444 15543 15552 16104 16328 16848 16956 17446 17568 18117 18369 19008 19032 19154 19764 20592 20724 21384 21411 21472 22451 22464 22608 23166 24156 24492 25272 25376 25434 26169 26352 27456 27632 28512 28548 28731 29646 30144 30888 31086 32208 32656 33696 33912 34749 34892 35136 36234 36738 38064 38151 38308 39528 41184 41448 42768 42822 42944 44902 45216 46332 46629 48312 48984 50544 50752 50868 52338 52704 54351 55107 55264 57024 57096 57462 59292 61776 62172 64233 64416 65312 67353 67392 67824 69498 69784 72468 73476 76128 76302 76616 78507 79056 82368 82896 85536 85644 86193 89804 90432 92664 93258 96624 97968 101088 101736 104676 105347 105408 108702 110214 110528 114192 114924 118584 123552 124344 124501 128466 128832 130624 134706 135648 138996 139568 139887 144936 146952 152256 152604 153232 157014 158112 163053 165321 165792 171072 171288 172386 179608 185328 186516 192699 193248 195936 202059 202176 203472 209352 210694 217404 220428 228384 229848 235521 237168 247104 248688 249002 256932 258579 269412 271296 277992 279136 279774 289872 293904 305208 306464 314028 316041 316224 326106 330642 331584 342576 344772 359216 370656 373032 373503 385398 386496 391872 404118 406944 418704 419661 421388 434808 440856 456768 459696 471042 474336 495963 497376 498004 513864 517158 538824 555984 558272 559548 579744 587808 606177 610416 612928 628056 632082 652212 661284 685152 689544 706563 718432 741312 746064 747006 770796 775737 808236 813888 837408 839322 842776 869616 881712 919392 942084 948123 948672 991926 994752 996008 1027728 1034316 1077648 1111968 1119096 1120509 1159488 1175616 1212354 1220832 1256112 1264164 1304424 1322568 1369511 1370304 1379088 1413126 1436864 1492128 1494012 1541592 1551474 1616472 1674816 1678644 1685552 1739232 1763424 1818531 1838784 1884168 1896246 1983852 1992016 2055456 2068632 2119689 2155296 2223936 2238192 2241018 2327211 2424708 2441664 2512224 2528328 2608848 2645136 2739022 2758176 2826252 2844369 2984256 2988024 3083184 3102948 3232944 3357288 3361527 3371104 3478464 3526848 3637062 3768336 3792492 3967704 3984032 4108533 4110912 4137264 4239378 4310592 4476384 4482036 4654422 4849416 5024448 5056656 5217696 5290272 5455593 5478044 5516352 5652504 5688738 5976048 6166368 6205896 6465888 6714576 6723054 6742208 7274124 7536672 7584984 7935408 7968064 8217066 8274528 8478756 8533107 8952768 8964072 9308844 9698832 10084581 10113312 10435392 10580544 10911186 10956088 11305008 11377476 11952096 12325599 12332736 12411792 12931776 13429152 13446108 14548248 15073344 15169968 15870816 16434132 16549056 16957512 17066214 17928144 18617688 19397664 20169162 20226624 21822372 21912176 22610016 22754952 23904192 24651198 24823584 25599321 26858304 26892216 29096496 30253743 30339936 31741632 32868264 33915024 34132428 35856288 36976797 37235376 38795328 40338324 43644744 43824352 45220032 45509904 49302396 49647168 51198642 53784432 58192992 60507486 60679872 65736528 67830048 68264856 71712576 73953594 74470752 80676648 87289488 87648704 91019808 98604792 102397284 107568864 110930391 116385984 121014972 131473056 135660096 136529712 147907188 148941504 161353296 174578976 182039616 197209584 204794568 215137728 221860782 242029944 262946112 273059424 295814376 322706592 332791173 349157952 394419168 409589136 443721564 484059888 546118848 591628752 645413184 665582346 788838336 819178272 887443128 968119776 1183257504 1331164692 1638356544 1774886256 1936239552 2366515008 2662329384 3549772512 5324658768 7099545024 10649317536 21298635072
• Sum of all divisors σ(n): 76078713984
• Sum of proper divisors (its aliquot sum) s(n): 54780078912
• 21298635072 is an abundant number, because the sum of its proper divisors (54780078912) is greater than itself. Its abundance is 33481443840

Bases of 21298635072

• Binary: 10011110101011111110110000101000000₂
• Hexadecimal: 0x4F57F6140
• Base-36: 9S8NO00

Squares and roots of 21298635072

• 21298635072 squared (21298635072²) is 453631855930228445184
• 21298635072 cubed (21298635072³) is 9661739356492014747567971893248
• The square root of 21298635072 is 145940.5189520715
• The cube root of 21298635072 is 2771.9406295261

Scales and comparisons

• 21,298,635,072 seconds is equal to 677 years, 11 weeks, 6 days, 23 hours, 31 minutes, 12 seconds.
• To count from 1 to 21,298,635,072 would take you about one thousand, three hundred fifty-four 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 21298635072 cubic inches would be around 231 feet tall.

Recreational maths with 21298635072

• 21298635072 backwards is 27053689212
• The number of decimal digits it has is: 11
• The sum of 21298635072's digits is 45
• More coming soon!