18979455768

Names of 18979455768

• Cardinal: 18979455768 can be written as Eighteen billion, nine hundred seventy-nine million, four hundred fifty-five thousand, seven hundred sixty-eight.

Scientific notation

• Scientific notation: 1.8979455768 × 10¹⁰

Factors of 18979455768

• Number of distinct prime factors ω(n): 7
• Total number of prime factors Ω(n): 11
• Sum of prime factors: 180

Divisors of 18979455768

• Number of divisors d(n): 576
• Complete list of divisors:
  1 2 3 4 6 7 8 12 13 14 21 24 26 28 29 37 39 42 49 52 56 58 74 78 84 87 89 91 98 104 111 116 147 148 156 168 169 174 178 182 196 203 222 232 259 267 273 294 296 312 338 348 356 364 377 392 406 444 481 507 518 534 546 588 609 623 637 676 696 712 728 754 777 812 888 962 1014 1036 1068 1073 1092 1131 1157 1176 1183 1218 1246 1274 1352 1421 1443 1508 1554 1624 1813 1869 1911 1924 2028 2072 2136 2146 2184 2262 2314 2366 2436 2492 2548 2581 2639 2842 2886 3016 3108 3219 3293 3367 3471 3549 3626 3738 3822 3848 4056 4263 4292 4361 4524 4628 4732 4872 4901 4984 5096 5162 5278 5439 5684 5772 6216 6253 6438 6586 6734 6942 7098 7252 7476 7511 7644 7743 7917 8099 8281 8526 8584 8722 9048 9256 9464 9802 9879 10101 10324 10556 10878 11368 11544 12506 12876 13083 13172 13468 13884 13949 14196 14504 14703 14952 15022 15041 15288 15486 15834 16198 16562 17052 17444 18067 18473 18759 19604 19758 20202 20648 21112 21756 22533 23051 23569 24297 24843 25012 25752 26166 26344 26936 27768 27898 28392 29406 30044 30082 30972 31668 32396 33124 33553 34104 34307 34888 36134 36946 37518 39208 39516 40404 41847 42809 43512 43771 45066 45123 46102 47138 48594 49686 50024 52332 52577 54201 55419 55796 56693 58812 60088 60164 61944 63336 64792 66248 67106 68614 69153 70707 72268 73892 75036 79032 80808 83694 85618 87542 90132 90246 92204 94276 95497 97188 97643 99372 100659 102921 104664 105154 105287 108402 110838 111592 113386 117624 120328 126469 128427 131313 134212 137228 138306 141414 144536 147784 150072 157731 161357 167388 170079 171236 175084 180264 180492 181337 184408 188552 190994 194376 195286 198744 201318 205842 210308 210574 216804 221676 226772 234871 240149 252938 256854 262626 268424 274456 276612 282828 286491 292929 299663 306397 315462 315861 322714 334776 340158 342472 350168 360984 362674 379407 381988 390572 402636 411684 420616 421148 433608 436189 443352 453544 469742 480298 484071 505876 513708 525252 544011 553224 556517 565656 572982 585858 599326 612794 630924 631722 645428 668479 680316 683501 704613 720447 725348 737009 758814 763976 781144 805272 823368 842296 872378 898989 919191 939484 960596 968142 1011752 1027416 1050504 1088022 1113034 1145964 1171716 1198652 1225588 1241461 1261848 1263444 1269359 1290856 1308567 1336958 1360632 1367002 1409226 1440894 1450696 1474018 1517628 1644097 1669551 1744756 1797978 1838382 1878968 1921192 1936284 2005437 2050503 2097641 2176044 2211027 2226068 2291928 2343432 2397304 2451176 2482922 2526888 2538718 2617134 2673916 2734004 2818452 2881788 2948036 3035256 3053323 3288194 3339102 3489512 3595956 3676764 3724383 3808077 3872568 3895619 4010874 4101006 4195282 4352088 4422054 4452136 4679353 4932291 4965844 5077436 5234268 5347832 5468008 5636904 5763576 5896072 6106646 6292923 6576388 6678204 7191912 7353528 7448766 7616154 7791238 8021748 8202012 8390564 8690227 8844108 8885513 9159969 9358706 9864582 9931688 10154872 10468536 11686857 12213292 12585846 13152776 13356408 14038059 14897532 15232308 15582476 16043496 16138993 16404024 16781128 17380454 17688216 17771026 18319938 18717412 19729164 21373261 23373714 24426584 25171692 26070681 26656539 27269333 28076118 29795064 30464616 31164952 32277986 34760908 35542052 36639876 37434824 39458328 42746522 46747428 48416979 50343384 52141362 53313078 54538666 56152236 60831589 64119783 64555972 69521816 71084104 73279752 81807999 85493044 93494856 96833958 104282724 106626156 109077332 112304472 112972951 121663178 128239566 129111944 163615998 170986088 182494767 193667916 208565448 213252312 218154664 225945902 243326356 256479132 327231996 338918853 364989534 387335832 451891804 486652712 512958264 654463992 677837706 729979068 790810657 903783608 1355675412 1459958136 1581621314 2372431971 2711350824 3163242628 4744863942 6326485256 9489727884 18979455768
• Sum of all divisors σ(n): 64213236000
• Sum of proper divisors (its aliquot sum) s(n): 45233780232
• 18979455768 is an abundant number, because the sum of its proper divisors (45233780232) is greater than itself. Its abundance is 26254324464

Bases of 18979455768

• Binary: 10001101011010000111000001100011000₂
• Hexadecimal: 0x46B438318
• Base-36: 8PVVLSO

Squares and roots of 18979455768

• 18979455768 squared (18979455768²) is 360219741249468469824
• 18979455768 cubed (18979455768³) is 6836774645804691876535250744832
• The square root of 18979455768 is 137765.9456034037
• The cube root of 18979455768 is 2667.4395428795

Scales and comparisons

• 18,979,455,768 seconds is equal to 603 years, 25 weeks, 2 days, 15 hours, 2 minutes, 48 seconds.
• To count from 1 to 18,979,455,768 would take you about one thousand, two hundred six 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 18979455768 cubic inches would be around 222.3 feet tall.

Recreational maths with 18979455768

• 18979455768 backwards is 86755497981
• The number of decimal digits it has is: 11
• The sum of 18979455768's digits is 69
• More coming soon!