18890011998648

Names of 18890011998648

• Cardinal: 18890011998648 can be written as Eighteen trillion, eight hundred ninety billion, eleven million, nine hundred ninety-eight thousand, six hundred forty-eight.

Scientific notation

• Scientific notation: 1.8890011998648 × 10¹³

Factors of 18890011998648

• Number of distinct prime factors ω(n): 4
• Total number of prime factors Ω(n): 11
• Sum of prime factors: 1225

Divisors of 18890011998648

• Number of divisors d(n): 192
• Complete list of divisors:
  1 2 3 4 6 7 8 9 12 14 18 21 24 27 28 36 42 49 54 56 63 72 84 98 108 126 147 168 189 196 216 252 294 378 392 441 504 588 756 882 1176 1213 1323 1512 1764 2426 2646 3528 3639 4852 5292 7278 8491 9704 10584 10917 14556 16982 21834 25473 29112 32751 33964 43668 50946 59437 65502 67928 76419 87336 101892 118874 131004 152838 178311 203784 229257 237748 262008 305676 356622 458514 475496 534933 611352 713244 917028 1069866 1426488 1471369 1604799 1834056 2139732 2942738 3209598 4279464 4414107 5885476 6419196 8828214 10299583 11770952 12838392 13242321 17656428 20599166 26484642 30898749 35312856 39726963 41198332 52969284 61797498 72097081 79453926 82396664 92696247 105938568 123594996 144194162 158907852 185392494 216291243 247189992 278088741 288388324 317815704 370784988 432582486 556177482 576776648 648873729 741569976 865164972 1112354964 1297747458 1730329944 1784770597 1946621187 2224709928 2595494916 3569541194 3893242374 5190989832 5354311791 7139082388 7786484748 10708623582 12493394179 14278164776 15572969496 16062935373 21417247164 24986788358 32125870746 37480182537 42834494328 48188806119 49973576716 64251741492 74960365074 87453759253 96377612238 99947153432 112440547611 128503482984 149920730148 174907518506 192755224476 224881095222 262361277759 299841460296 337321642833 349815037012 385510448952 449762190444 524722555518 674643285666 699630074024 787083833277 899524380888 1049445111036 1349286571332 1574167666554 2098890222072 2361251499831 2698573142664 3148335333108 4722502999662 6296670666216 9445005999324 18890011998648
• Sum of all divisors σ(n): 61089516756000
• Sum of proper divisors (its aliquot sum) s(n): 42199504757352
• 18890011998648 is an abundant number, because the sum of its proper divisors (42199504757352) is greater than itself. Its abundance is 23309492758704

Bases of 18890011998648

• Binary: 100010010111000101100011101000111100110111000₂
• Hexadecimal: 0x112E2C7479B8
• Base-36: 6P1Y9F260

Squares and roots of 18890011998648

• 18890011998648 squared (18890011998648²) is 356832553309065407553827904
• 18890011998648 cubed (18890011998648³) is 6740571213516447645402843321482072673792
• The square root of 18890011998648 is 4346264.1427607687
• The cube root of 18890011998648 is 26632.4269575471

Scales and comparisons

• 18,890,011,998,648 seconds is equal to 600,643 years, 49 weeks, 3 days, 3 hours, 10 minutes, 48 seconds.
• To count from 1 to 18,890,011,998,648 would take you about one million, five hundred one thousand, six hundred 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 18890011998648 cubic inches would be around 2219.4 feet tall.

Recreational maths with 18890011998648

• 18890011998648 backwards is 84689911009881
• 18890011998648 is a Harshad number.
• The number of decimal digits it has is: 14
• The sum of 18890011998648's digits is 72
• More coming soon!