18008372928

Names of 18008372928

• Cardinal: 18008372928 can be written as Eighteen billion, eight million, three hundred seventy-two thousand, nine hundred twenty-eight.

Scientific notation

• Scientific notation: 1.8008372928 × 10¹⁰

Factors of 18008372928

• Number of distinct prime factors ω(n): 7
• Total number of prime factors Ω(n): 12
• Sum of prime factors: 1182

Divisors of 18008372928

• Number of divisors d(n): 448
• Complete list of divisors:
  1 2 3 4 6 7 8 12 13 14 16 21 23 24 26 28 32 39 41 42 46 48 52 56 64 69 78 82 84 91 92 96 104 112 123 138 156 161 164 168 182 184 192 208 224 246 273 276 287 299 312 322 328 336 364 368 416 448 483 492 533 546 552 574 598 624 644 656 672 728 736 832 861 897 943 966 984 1066 1092 1093 1104 1148 1196 1248 1288 1312 1344 1456 1472 1599 1722 1794 1886 1932 1968 2093 2132 2184 2186 2208 2296 2392 2496 2576 2624 2829 2912 3198 3279 3444 3588 3731 3772 3864 3936 4186 4264 4368 4372 4416 4592 4784 5152 5658 5824 6279 6396 6558 6601 6888 7176 7462 7544 7651 7728 7872 8372 8528 8736 8744 9184 9568 10304 11193 11316 12259 12558 12792 13116 13202 13776 14209 14352 14924 15088 15302 15456 16744 17056 17472 17488 18368 19136 19803 22386 22632 22953 24518 25116 25139 25584 26232 26404 27552 28418 28704 29848 30176 30604 30912 33488 34112 34976 36777 39606 42627 44772 44813 45264 45906 49036 50232 50278 51168 52464 52808 55104 56836 57408 59696 60352 61208 66976 69952 73554 75417 79212 85254 85813 89544 89626 90528 91812 98072 99463 100464 100556 102336 104928 105616 113672 119392 122416 133952 134439 147108 150834 158424 170508 171626 175973 179088 179252 181056 183624 196144 198926 200928 201112 209856 211232 227344 238784 244832 257439 268878 294216 298389 301668 313691 316848 326807 341016 343252 351946 358176 358504 367248 392288 397852 401856 402224 422464 454688 489664 514878 527919 537756 582569 588432 596778 603336 627382 633696 653614 682032 686504 703892 716352 717008 734496 784576 795704 804448 909376 941073 980421 1029756 1030699 1055838 1075512 1165138 1176864 1193556 1206672 1254764 1267392 1307228 1364064 1373008 1407784 1434016 1468992 1591408 1608896 1747707 1882146 1960842 2059512 2061398 2111676 2151024 2287649 2330276 2353728 2387112 2413344 2509528 2614456 2728128 2746016 2815568 2868032 3092097 3182816 3495414 3764292 3921684 4077983 4119024 4122796 4223352 4302048 4575298 4660552 4774224 4826688 5019056 5228912 5492032 5631136 6184194 6365632 6862947 6990828 7214893 7528584 7843368 8155966 8238048 8245592 8446704 8604096 9150596 9321104 9548448 10038112 10457824 11262272 12233949 12368388 13399087 13725894 13981656 14429786 15057168 15686736 16311932 16476096 16491184 16893408 18301192 18642208 19096896 20076224 20915648 21644679 24467898 24736776 26798174 27451788 27963312 28859572 30114336 31373472 32623864 32982368 33786816 36602384 37284416 40197261 43289358 48935796 49473552 53596348 54903576 55926624 57719144 60228672 62746944 65247728 65964736 73204768 80394522 86578716 93793609 97871592 98947104 107192696 109807152 111853248 115438288 130495456 146409536 160789044 173157432 187587218 195743184 197894208 214385392 219614304 230876576 260990912 281380827 321578088 346314864 375174436 391486368 428770784 439228608 461753152 562761654 643156176 692629728 750348872 782972736 857541568 1125523308 1286312352 1385259456 1500697744 2251046616 2572624704 3001395488 4502093232 6002790976 9004186464 18008372928
• Sum of all divisors σ(n): 62742177792
• Sum of proper divisors (its aliquot sum) s(n): 44733804864
• 18008372928 is an abundant number, because the sum of its proper divisors (44733804864) is greater than itself. Its abundance is 26725431936

Bases of 18008372928

• Binary: 10000110001011000011111011011000000₂
• Hexadecimal: 0x43161F6C0
• Base-36: 89TPXHC

Squares and roots of 18008372928

• 18008372928 squared (18008372928²) is 324301495513923293184
• 18008372928 cubed (18008372928³) is 5840142272322849680043352522752
• The square root of 18008372928 is 134195.2790823879
• The cube root of 18008372928 is 2621.1476882363

Scales and comparisons

• 18,008,372,928 seconds is equal to 572 years, 31 weeks, 5 days, 5 hours, 48 minutes, 48 seconds.
• To count from 1 to 18,008,372,928 would take you about one thousand, one hundred forty-five 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 18008372928 cubic inches would be around 218.4 feet tall.

Recreational maths with 18008372928

• 18008372928 backwards is 82927380081
• 18008372928 is a Harshad number.
• The number of decimal digits it has is: 11
• The sum of 18008372928's digits is 48
• More coming soon!