1385321730

Names of 1385321730

• Cardinal: 1385321730 can be written as One billion, three hundred eighty-five million, three hundred twenty-one thousand, seven hundred thirty.

Scientific notation

• Scientific notation: 1.38532173 × 10⁹

Factors of 1385321730

• Number of distinct prime factors ω(n): 7
• Total number of prime factors Ω(n): 8
• Sum of prime factors: 312

Divisors of 1385321730

• Number of divisors d(n): 192
• Complete list of divisors:
  1 2 3 5 6 10 13 15 19 26 30 38 39 57 65 73 78 95 114 130 146 169 190 195 197 219 247 285 338 365 390 394 438 494 507 570 591 730 741 845 949 985 1014 1095 1182 1235 1387 1482 1690 1898 1970 2190 2470 2535 2561 2774 2847 2955 3211 3705 3743 4161 4745 5070 5122 5694 5910 6422 6935 7410 7486 7683 8322 9490 9633 11229 12337 12805 13870 14235 14381 15366 16055 18031 18715 19266 20805 22458 24674 25610 28470 28762 32110 33293 36062 37011 37430 38415 41610 43143 48165 48659 54093 56145 61685 66586 71905 74022 76830 86286 90155 96330 97318 99879 108186 112290 123370 143810 145977 166465 180310 185055 186953 199758 215715 234403 243295 270465 273239 291954 332930 370110 373906 431430 468806 486590 499395 540930 546478 560859 632567 703209 729885 819717 934765 998790 1121718 1172015 1265134 1366195 1406418 1459770 1639434 1869530 1897701 2344030 2430389 2732390 2804295 3162835 3516045 3552107 3795402 4098585 4860778 5608590 6325670 7032090 7104214 7291167 8197170 9488505 10656321 12151945 14582334 17760535 18977010 21312642 24303890 35521070 36455835 46177391 53281605 72911670 92354782 106563210 138532173 230886955 277064346 461773910 692660865 1385321730
• Sum of all divisors σ(n): 3861095040
• Sum of proper divisors (its aliquot sum) s(n): 2475773310
• 1385321730 is an abundant number, because the sum of its proper divisors (2475773310) is greater than itself. Its abundance is 1090451580

Bases of 1385321730

• Binary: 1010010100100100101010100000010₂
• Hexadecimal: 0x52925502
• Base-36: MWS936

Squares and roots of 1385321730

• 1385321730 squared (1385321730²) is 1919116295610192900
• 1385321730 cubed (1385321730³) is 2658593506705903833861717000
• The square root of 1385321730 is 37219.9103975279
• The cube root of 1385321730 is 1114.7655750671

Scales and comparisons

• 1,385,321,730 seconds is equal to 44 years, 2 weeks, 3 days, 19 hours, 35 minutes, 30 seconds.
• To count from 1 to 1,385,321,730 would take you about eighty-eight 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 1385321730 cubic inches would be around 92.9 feet tall.

Recreational maths with 1385321730

• 1385321730 backwards is 0371235831
• The number of decimal digits it has is: 10
• The sum of 1385321730's digits is 33
• More coming soon!