18013459968

Names of 18013459968

• Cardinal: 18013459968 can be written as Eighteen billion, thirteen million, four hundred fifty-nine thousand, nine hundred sixty-eight.

Scientific notation

• Scientific notation: 1.8013459968 × 10¹⁰

Factors of 18013459968

• Number of distinct prime factors ω(n): 5
• Total number of prime factors Ω(n): 17
• Sum of prime factors: 172

Divisors of 18013459968

• Number of divisors d(n): 640
• Complete list of divisors:
  1 2 3 4 6 7 8 9 12 14 16 18 21 24 27 28 29 32 36 42 48 49 54 56 58 63 64 72 84 87 96 98 108 112 116 126 128 131 144 147 168 174 189 192 196 203 216 224 232 252 256 261 262 288 294 336 343 348 378 384 392 393 406 432 441 448 464 504 512 522 524 576 588 609 672 686 696 756 768 783 784 786 812 864 882 896 917 928 1008 1029 1044 1048 1152 1176 1179 1218 1323 1344 1372 1392 1421 1512 1536 1566 1568 1572 1624 1728 1764 1792 1827 1834 1856 2016 2058 2088 2096 2304 2352 2358 2436 2646 2688 2744 2751 2784 2842 3024 3087 3132 3136 3144 3248 3456 3528 3537 3584 3654 3668 3712 3799 4032 4116 4176 4192 4263 4608 4704 4716 4872 5292 5376 5481 5488 5502 5568 5684 6048 6174 6264 6272 6288 6419 6496 6912 7056 7074 7308 7336 7424 7598 8064 8232 8253 8352 8384 8526 9261 9408 9432 9744 9947 10584 10752 10962 10976 11004 11136 11368 11397 12096 12348 12528 12544 12576 12789 12838 12992 13824 14112 14148 14616 14672 14848 15196 16128 16464 16506 16704 16768 17052 18522 18816 18864 19257 19488 19894 21168 21924 21952 22008 22272 22736 22794 24192 24696 24759 25056 25088 25152 25578 25676 25984 26593 28224 28296 29232 29344 29841 30392 32256 32928 33012 33408 33536 34104 34191 37044 37632 37728 38367 38514 38976 39788 42336 43848 43904 44016 44544 44933 45472 45588 48384 49392 49518 50112 50304 51156 51352 51968 53186 56448 56592 57771 58464 58688 59682 60784 65856 66024 66816 67072 68208 68382 74088 75264 75456 76734 77028 77952 79576 79779 84672 87696 87808 88032 89523 89866 90944 91176 96768 98784 99036 100224 100608 102312 102573 102704 103936 106372 112896 113184 115542 116928 117376 119364 121568 131712 132048 133632 134799 136416 136764 148176 150912 153468 154056 155904 159152 159558 169344 173313 175392 175616 176064 179046 179732 181888 182352 186151 197568 198072 200448 201216 204624 205146 205408 212744 225792 226368 231084 233856 234752 238728 239337 243136 263424 264096 268569 269598 272832 273528 296352 301824 306936 308112 311808 318304 319116 338688 346626 350784 352128 358092 359464 363776 364704 372302 395136 396144 400896 404397 409248 410292 410816 425488 452736 462168 467712 469504 477456 478674 486272 526848 528192 537138 539196 545664 547056 558453 592704 603648 613872 616224 636608 638232 677376 693252 701568 704256 716184 718011 718928 727552 729408 744604 790272 792288 808794 818496 820584 821632 850976 905472 924336 935424 954912 957348 972544 1056384 1074276 1078392 1091328 1094112 1116906 1185408 1213191 1227744 1232448 1273216 1276464 1303057 1386504 1403136 1408512 1432368 1436022 1437856 1458816 1489208 1580544 1584576 1617588 1636992 1641168 1643264 1675359 1701952 1810944 1848672 1909824 1914696 1945088 2112768 2148552 2156784 2182656 2188224 2233812 2370816 2426382 2455488 2464896 2546432 2552928 2606114 2773008 2806272 2864736 2872044 2875712 2917632 2978416 3169152 3235176 3273984 3282336 3286528 3350718 3403904 3697344 3819648 3829392 3909171 4225536 4297104 4313568 4376448 4467624 4741632 4852764 4910976 4929792 5026077 5092864 5105856 5212228 5546016 5729472 5744088 5751424 5835264 5956832 6338304 6470352 6547968 6564672 6701436 6807808 7394688 7639296 7658784 7818342 8594208 8627136 8752896 8935248 9705528 9821952 9859584 10052154 10211712 10424456 11092032 11458944 11488176 11502848 11727513 11913664 12676608 12940704 13129344 13402872 13615616 14789376 15278592 15317568 15636684 17188416 17254272 17505792 17870496 19411056 19643904 20104308 20423424 20848912 22184064 22917888 22976352 23005696 23455026 23827328 25881408 26258688 26805744 29578752 30635136 31273368 34376832 34508544 35182539 35740992 38822112 40208616 40846848 41697824 44368128 45835776 45952704 46910052 47654656 51762816 52517376 53611488 61270272 62546736 68753664 69017088 70365078 71481984 77644224 80417232 83395648 88736256 91905408 93820104 95309312 103525632 107222976 122540544 125093472 137507328 140730156 142963968 155288448 160834464 166791296 183810816 187640208 207051264 214445952 250186944 281460312 285927936 310576896 321668928 333582592 367621632 375280416 428891904 500373888 562920624 621153792 643337856 667165184 750560832 857783808 1000747776 1125841248 1286675712 1501121664 2001495552 2251682496 2573351424 3002243328 4503364992 6004486656 9006729984 18013459968
• Sum of all divisors σ(n): 64817280000
• Sum of proper divisors (its aliquot sum) s(n): 46803820032
• 18013459968 is an abundant number, because the sum of its proper divisors (46803820032) is greater than itself. Its abundance is 28790360064

Bases of 18013459968

• Binary: 10000110001101011111001011000000000₂
• Hexadecimal: 0x431AF9600
• Base-36: 89WQYO0

Squares and roots of 18013459968

• 18013459968 squared (18013459968²) is 324484740018738561024
• 18013459968 cubed (18013459968³) is 5845092874554434638863749087232
• The square root of 18013459968 is 134214.2316149819
• The cube root of 18013459968 is 2621.3944739557

Scales and comparisons

• 18,013,459,968 seconds is equal to 572 years, 40 weeks, 1 day, 2 hours, 52 minutes, 48 seconds.
• To count from 1 to 18,013,459,968 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 18013459968 cubic inches would be around 218.4 feet tall.

Recreational maths with 18013459968

• 18013459968 backwards is 86995431081
• 18013459968 is a Harshad number.
• The number of decimal digits it has is: 11
• The sum of 18013459968's digits is 54
• More coming soon!