18128435688

Names of 18128435688

• Cardinal: 18128435688 can be written as Eighteen billion, one hundred twenty-eight million, four hundred thirty-five thousand, six hundred eighty-eight.

Scientific notation

• Scientific notation: 1.8128435688 × 10¹⁰

Factors of 18128435688

• Number of distinct prime factors ω(n): 7
• Total number of prime factors Ω(n): 13
• Sum of prime factors: 140

Divisors of 18128435688

• Number of divisors d(n): 768
• Complete list of divisors:
  1 2 3 4 6 8 9 11 12 18 22 23 24 27 29 31 33 36 41 44 46 54 58 62 66 69 72 81 82 87 88 92 93 99 108 116 123 124 132 138 162 164 174 184 186 198 207 216 232 243 246 248 253 261 264 276 279 297 319 324 328 341 348 369 372 396 414 451 486 492 506 522 552 558 594 621 638 648 667 682 696 713 738 744 759 783 792 828 837 891 899 902 943 957 972 984 1012 1023 1044 1107 1116 1188 1189 1242 1271 1276 1334 1353 1364 1426 1476 1518 1566 1656 1674 1782 1798 1804 1863 1886 1914 1944 2001 2024 2046 2088 2139 2214 2232 2277 2349 2376 2378 2484 2511 2542 2552 2668 2673 2697 2706 2728 2829 2852 2871 2952 3036 3069 3132 3321 3348 3564 3567 3596 3608 3726 3772 3813 3828 4002 4059 4092 4278 4428 4554 4698 4756 4968 5022 5084 5336 5346 5394 5412 5589 5658 5704 5742 6003 6072 6138 6264 6417 6642 6696 6831 7047 7128 7134 7192 7337 7452 7533 7544 7626 7656 7843 8004 8091 8118 8184 8487 8556 8613 8856 9108 9207 9396 9512 9889 9963 10044 10168 10373 10692 10701 10788 10824 11178 11316 11439 11484 12006 12177 12276 12834 13079 13284 13662 13981 14094 14268 14674 14904 15066 15252 15686 16008 16182 16236 16974 17112 17226 18009 18216 18414 18792 19251 19778 19926 20088 20493 20677 20746 21384 21402 21576 22011 22356 22632 22878 22968 23529 24012 24273 24354 24552 25461 25668 25839 26158 26568 27324 27347 27621 27962 28188 28536 29233 29348 29667 30132 30504 31119 31372 32103 32364 32472 33948 34317 34452 36018 36531 36828 36859 38502 39237 39556 39852 40986 41354 41492 41943 42804 44022 44712 45756 47058 48024 48546 48708 50922 51336 51678 52316 54027 54648 54694 55242 55924 56376 57753 58466 58696 59334 60264 61479 62031 62238 62744 64206 64728 66033 67896 68634 68904 70587 72036 72819 73062 73656 73718 76383 77004 77517 78474 79112 79704 81972 82041 82708 82863 82984 83886 85608 87699 88044 89001 91512 93357 94116 96309 97092 97416 101844 102951 103356 104632 108054 109388 109593 110484 110577 111848 115506 116932 117711 118668 122958 124062 124476 125829 128412 132066 137268 141174 144072 145638 146124 147436 152766 154008 155034 156948 162081 163944 164082 165416 165726 167772 173259 175398 176088 178002 186093 186714 188232 192618 194184 198099 203688 205902 206712 211761 216108 218457 218776 219186 220968 221154 227447 229149 231012 233864 235422 237336 245916 246123 248124 248952 251658 256824 263097 264132 267003 274536 280071 282348 288927 291276 292248 294872 300817 305532 308853 310068 313896 321563 324162 328164 331452 331731 335544 346518 350796 353133 356004 372186 373428 377487 385236 396198 405449 411804 423522 432216 436914 438372 442308 454894 458298 462024 470844 491832 492246 496248 503316 526194 528264 534006 558279 560142 564696 577854 582552 594297 601634 611064 617706 620136 635283 643126 648324 656328 662904 663462 682341 693036 701592 706266 712008 738369 744372 746856 754974 770472 789291 792396 801009 810898 823608 840213 847044 847757 873828 876744 884616 902451 909788 916596 941688 964689 984492 995193 1006632 1052388 1059399 1068012 1116558 1120284 1132461 1155708 1188594 1203268 1216347 1235412 1270566 1286252 1296648 1326924 1364682 1386072 1412532 1476738 1488744 1509948 1578582 1584792 1602018 1621796 1674837 1680426 1694088 1695514 1747656 1782891 1804902 1819576 1833192 1905849 1929378 1968984 1990386 2047023 2104776 2118798 2136024 2215107 2233116 2240568 2264922 2311416 2367873 2377188 2403027 2406536 2432694 2470824 2520639 2541132 2543271 2572504 2653848 2707353 2729364 2825064 2894067 2953476 2985579 3019896 3157164 3178197 3204036 3243592 3349674 3360852 3391028 3397383 3565782 3609804 3649041 3811698 3858756 3980772 4094046 4237596 4430214 4466232 4529844 4735746 4754376 4806054 4865388 5024511 5041278 5082264 5086542 5414706 5458728 5788134 5906952 5971158 6141069 6314328 6356394 6408072 6645321 6699348 6721704 6782056 6794766 7103619 7131564 7219608 7298082 7623396 7629813 7717512 7961544 8122059 8188092 8475192 8682201 8860428 8956737 9059688 9325327 9471492 9612108 9730776 10049022 10082556 10173084 10829412 10947123 11576268 11942316 12282138 12712788 13290642 13398696 13589532 14207238 14263128 14596164 15246792 15259626 16244118 16376184 17364402 17720856 17913474 18423207 18650654 18942984 19224216 20098044 20165112 20346168 21658824 21894246 22889439 23152536 23884632 24366177 24564276 25425576 26046603 26581284 27179064 27975981 28414476 29192328 30519252 32488236 32841369 34728804 35826948 36846414 37301308 40196088 43788492 45778878 48732354 49128552 52093206 53162568 55269621 55951962 56828952 61038504 64976472 65682738 68668317 69457608 71653896 73098531 73692828 74602616 78139809 83927943 87576984 91557756 97464708 98524107 104186412 110539242 111903924 131365476 137336634 146197062 147385656 156279618 167855886 183115512 194929416 197048214 206004951 208372824 221078484 223807848 251783829 262730952 274673268 292394124 312559236 335711772 394096428 412009902 442156968 503567658 549346536 584788248 625118472 671423544 755351487 788192856 824019804 1007135316 1510702974 1648039608 2014270632 2266054461 3021405948 4532108922 6042811896 9064217844 18128435688
• Sum of all divisors σ(n): 63402393600
• Sum of proper divisors (its aliquot sum) s(n): 45273957912
• 18128435688 is an abundant number, because the sum of its proper divisors (45273957912) is greater than itself. Its abundance is 27145522224

Bases of 18128435688

• Binary: 10000111000100010011111100111101000₂
• Hexadecimal: 0x43889F9E8
• Base-36: 8BT7AI0

Squares and roots of 18128435688

• 18128435688 squared (18128435688²) is 328640180493952033344
• 18128435688 cubed (18128435688³) is 5957732376577321509433535580672
• The square root of 18128435688 is 134641.8793986477
• The cube root of 18128435688 is 2626.9598999105

Scales and comparisons

• 18,128,435,688 seconds is equal to 576 years, 22 weeks, 1 day, 20 hours, 34 minutes, 48 seconds.
• To count from 1 to 18,128,435,688 would take you about one thousand, one hundred fifty-two 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 18128435688 cubic inches would be around 218.9 feet tall.

Recreational maths with 18128435688

• 18128435688 backwards is 88653482181
• 18128435688 is a Harshad number.
• The number of decimal digits it has is: 11
• The sum of 18128435688's digits is 54
• More coming soon!