18399494976

Names of 18399494976

• Cardinal: 18399494976 can be written as Eighteen billion, three hundred ninety-nine million, four hundred ninety-four thousand, nine hundred seventy-six.

Scientific notation

• Scientific notation: 1.8399494976 × 10¹⁰

Factors of 18399494976

• Number of distinct prime factors ω(n): 7
• Total number of prime factors Ω(n): 12
• Sum of prime factors: 212

Divisors of 18399494976

• Number of divisors d(n): 448
• Complete list of divisors:
  1 2 3 4 6 8 12 16 24 29 31 32 37 43 48 58 62 64 67 74 86 87 93 96 111 116 124 129 134 148 172 174 186 192 201 222 232 248 258 268 296 344 348 372 402 444 464 496 516 536 592 688 696 744 804 888 899 928 992 1032 1072 1073 1147 1184 1247 1333 1376 1392 1488 1591 1608 1776 1798 1856 1943 1984 2064 2077 2144 2146 2294 2368 2479 2494 2666 2697 2752 2784 2881 2976 3182 3216 3219 3441 3552 3596 3741 3886 3999 4128 4154 4288 4292 4588 4773 4958 4988 5332 5394 5568 5762 5829 5952 6231 6364 6432 6438 6882 7104 7192 7437 7482 7772 7998 8256 8308 8584 8643 9176 9546 9916 9976 10664 10788 11524 11658 12462 12728 12864 12876 13764 14384 14874 14964 15544 15996 16616 17168 17286 18352 19092 19832 19952 21328 21576 23048 23316 24924 25456 25752 27528 28768 29748 29928 31088 31992 33232 33263 34336 34572 36704 38184 38657 39664 39904 42656 43152 46096 46139 46632 49321 49848 50912 51504 55056 57536 59496 59856 60233 62176 63984 66464 66526 68672 69144 71891 73408 76368 76849 77314 79328 79808 83549 85312 86304 89311 92192 92278 93264 98642 99696 99789 101824 103008 106597 110112 115971 118992 119712 120466 124352 127968 132928 133052 138288 138417 143782 147963 152736 153698 154628 158656 167098 172608 178622 180699 184384 184556 186528 197284 199392 199578 206016 213194 215673 220224 230547 231942 237984 239424 240932 250647 255936 266104 267933 276576 276834 287564 295926 305472 307396 309256 319791 334196 357244 361398 369112 373056 394568 398784 399156 426388 431346 461094 463884 475968 481864 501294 532208 535866 553152 553668 575128 591852 614792 618512 639582 668392 714488 722796 738224 789136 798312 852776 862692 922188 927768 963728 1002588 1064416 1071732 1107336 1150256 1183704 1229584 1237024 1279164 1336784 1428976 1430309 1445592 1476448 1578272 1596624 1705552 1725384 1844376 1855536 1927456 2005176 2128832 2143464 2214672 2228621 2300512 2367408 2459168 2474048 2558328 2590019 2673568 2857952 2860618 2891184 2952896 3091313 3156544 3193248 3304507 3411104 3450768 3688752 3711072 3854912 4010352 4286928 4290927 4429344 4457242 4601024 4734816 4918336 5116656 5180038 5347136 5715904 5721236 5782368 6182626 6386496 6609014 6685863 6822208 6901536 7377504 7422144 7770057 8020704 8573856 8581854 8858688 8914484 9273939 9469632 9913521 10233312 10360076 11442472 11564736 12365252 13218028 13371726 13803072 14755008 15540114 16041408 17147712 17163708 17828968 18547878 19827042 20466624 20720152 22884944 24730504 26436056 26743452 31080228 34327416 35657936 37095756 39654084 41440304 45769888 49461008 52872112 53486904 62160456 68654832 71315872 74191512 79308168 82880608 91539776 95830703 98922016 105744224 106973808 124320912 137309664 142631744 148383024 158616336 165761216 191661406 197844032 211488448 213947616 248641824 274619328 287492109 296766048 317232672 383322812 427895232 497283648 574984218 593532096 634465344 766645624 1149968436 1533291248 2299936872 3066582496 4599873744 6133164992 9199747488 18399494976
• Sum of all divisors σ(n): 55447265280
• Sum of proper divisors (its aliquot sum) s(n): 37047770304
• 18399494976 is an abundant number, because the sum of its proper divisors (37047770304) is greater than itself. Its abundance is 18648275328

Bases of 18399494976

• Binary: 10001001000101100100000001101000000₂
• Hexadecimal: 0x448B20340
• Base-36: 8GAL16O

Squares and roots of 18399494976

• 18399494976 squared (18399494976²) is 338541415371849240576
• 18399494976 cubed (18399494976³) is 6228991071302269273807527346176
• The square root of 18399494976 is 135644.7381065701
• The cube root of 18399494976 is 2639.9880899371

Scales and comparisons

• 18,399,494,976 seconds is equal to 585 years, 2 weeks, 3 days, 2 hours, 49 minutes, 36 seconds.
• To count from 1 to 18,399,494,976 would take you about one thousand, one hundred seventy 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 18399494976 cubic inches would be around 220 feet tall.

Recreational maths with 18399494976

• 18399494976 backwards is 67949499381
• The number of decimal digits it has is: 11
• The sum of 18399494976's digits is 69
• More coming soon!