18390656928

Names of 18390656928

• Cardinal: 18390656928 can be written as Eighteen billion, three hundred ninety million, six hundred fifty-six thousand, nine hundred twenty-eight.

Scientific notation

• Scientific notation: 1.8390656928 × 10¹⁰

Factors of 18390656928

• Number of distinct prime factors ω(n): 6
• Total number of prime factors Ω(n): 12
• Sum of prime factors: 115

Divisors of 18390656928

• Number of divisors d(n): 432
• Complete list of divisors:
  1 2 3 4 6 7 8 12 14 16 19 21 24 28 32 38 41 42 43 48 56 57 76 82 84 86 96 112 114 123 129 133 152 164 168 172 224 228 246 258 266 287 301 304 328 336 344 361 399 456 492 516 532 574 602 608 656 672 688 722 779 798 817 861 903 912 984 1032 1064 1083 1148 1204 1312 1376 1444 1558 1596 1634 1722 1763 1806 1824 1849 1968 2064 2128 2166 2296 2337 2408 2451 2527 2888 3116 3192 3268 3444 3526 3612 3698 3936 4128 4256 4332 4592 4674 4816 4902 5054 5289 5453 5547 5719 5776 6232 6384 6536 6888 7052 7224 7396 7581 8664 9184 9348 9632 9804 10108 10578 10906 11094 11438 11552 12341 12464 12768 12943 13072 13776 14104 14448 14792 14801 15162 15523 16359 17157 17328 18696 19608 20216 21156 21812 22188 22876 24682 24928 25886 26144 27552 28208 28896 29584 29602 30324 31046 32718 33497 34314 34656 35131 37023 37392 38829 39216 40432 42312 43624 44376 44403 45752 46569 49364 51772 56416 59168 59204 60648 62092 65436 66994 68628 70262 74046 74784 75809 77658 78432 80864 84624 87248 88752 88806 91504 93138 98728 100491 103544 103607 105393 108661 118408 121296 124184 130872 133988 137256 140524 148092 151618 155316 169248 174496 177504 177612 183008 186276 197456 200982 207088 207214 210786 217322 227427 234479 236816 242592 245917 248368 261744 267976 274512 281048 296184 303236 310632 310821 325983 355224 372552 394912 401964 414176 414428 421572 434644 454854 468958 473632 491834 496736 523488 530663 535952 549024 562096 592368 606472 621264 621642 636443 651966 667489 703437 710448 737751 745104 803928 828856 843144 869288 909708 937916 983668 1061326 1071904 1124192 1184736 1212944 1242528 1243284 1272886 1303932 1334978 1406874 1420896 1440371 1475502 1490208 1591989 1607856 1657712 1686288 1738576 1819416 1875832 1909329 1967336 2002467 2122652 2425888 2486568 2545772 2607864 2669956 2813748 2880742 2951004 3183978 3215712 3315424 3372576 3477152 3638832 3751664 3818658 3934672 4004934 4245304 4321113 4455101 4672423 4973136 5091544 5215728 5339912 5627496 5761484 5902008 6367956 7277664 7503328 7637316 7869344 8009868 8490608 8642226 8910202 9344846 9946272 10082597 10183088 10431456 10679824 11254992 11522968 11804016 12735912 13365303 14017269 15274632 16019736 16981216 17284452 17820404 18689692 20165194 20366176 21359648 22509984 23045936 23608032 25471824 26730606 27367049 28034538 30247791 30549264 32039472 34568904 35640808 37379384 40330388 46091872 50943648 53461212 54734098 56069076 60495582 61098528 64078944 69137808 71281616 74758768 80660776 82101147 106922424 109468196 112138152 120991164 138275616 142563232 149517536 161321552 164202294 191569343 213844848 218936392 224276304 241982328 322643104 328404588 383138686 427689696 437872784 448552608 483964656 574708029 656809176 766277372 875745568 967929312 1149416058 1313618352 1532554744 2298832116 2627236704 3065109488 4597664232 6130218976 9195328464 18390656928
• Sum of all divisors σ(n): 61068240576
• Sum of proper divisors (its aliquot sum) s(n): 42677583648
• 18390656928 is an abundant number, because the sum of its proper divisors (42677583648) is greater than itself. Its abundance is 24286926720

Bases of 18390656928

• Binary: 10001001000001010110010011110100000₂
• Hexadecimal: 0x4482B27A0
• Base-36: 8G5BLPC

Squares and roots of 18390656928

• 18390656928 squared (18390656928²) is 338216262243394397184
• 18390656928 cubed (18390656928³) is 6220019246388745992808313290752
• The square root of 18390656928 is 135612.1562692667
• The cube root of 18390656928 is 2639.5653232919

Scales and comparisons

• 18,390,656,928 seconds is equal to 584 years, 39 weeks, 5 days, 19 hours, 48 minutes, 48 seconds.
• To count from 1 to 18,390,656,928 would take you about one thousand, one hundred sixty-nine 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 18390656928 cubic inches would be around 220 feet tall.

Recreational maths with 18390656928

• 18390656928 backwards is 82965609381
• 18390656928 is a Harshad number.
• The number of decimal digits it has is: 11
• The sum of 18390656928's digits is 57
• More coming soon!