7138217394

Names of 7138217394

• Cardinal: 7138217394 can be written as Seven billion, one hundred thirty-eight million, two hundred seventeen thousand, three hundred ninety-four.

Scientific notation

• Scientific notation: 7.138217394 × 10⁹

Factors of 7138217394

• Number of distinct prime factors ω(n): 6
• Total number of prime factors Ω(n): 9
• Sum of prime factors: 10709

Divisors of 7138217394

• Number of divisors d(n): 192
• Complete list of divisors:
  1 2 3 6 7 9 11 14 18 21 22 23 27 33 42 46 49 54 63 66 69 77 98 99 126 138 147 154 161 189 198 207 231 253 294 297 322 378 414 441 462 483 506 539 594 621 693 759 882 966 1078 1127 1242 1323 1386 1449 1518 1617 1771 2079 2254 2277 2646 2898 3234 3381 3542 4158 4347 4554 4851 5313 6762 6831 8694 9702 10143 10626 10663 12397 13662 14553 15939 20286 21326 24794 29106 30429 31878 31989 37191 47817 60858 63978 74382 74641 95634 95967 111573 117293 149282 191934 223146 223923 234586 245249 287901 334719 351879 447846 490498 522487 575802 669438 671769 703758 735747 821051 1044974 1055637 1343538 1471494 1567461 1642102 1716743 2015307 2111274 2207241 2463153 2697739 3134922 3166911 3433486 4030614 4414482 4702383 4926306 5150229 5395478 5747357 6333822 6621723 7389459 8093217 9404766 10300458 11494714 12017201 13243446 14107149 14778918 15450687 16186434 17242071 18884173 22168377 24034402 24279651 28214298 30901374 34484142 36051603 37768346 44336754 46352061 48559302 51726213 56652519 72103206 72838953 92704122 103452426 108154809 113305038 132189211 145677906 155178639 169957557 216309618 264378422 310357278 324464427 339915114 396567633 509872671 648928854 793135266 1019745342 1189702899 2379405798 3569108697 7138217394
• Sum of all divisors σ(n): 21007226880
• Sum of proper divisors (its aliquot sum) s(n): 13869009486
• 7138217394 is an abundant number, because the sum of its proper divisors (13869009486) is greater than itself. Its abundance is 6730792092

Bases of 7138217394

• Binary: 110101001011110001000110110110010₂
• Hexadecimal: 0x1A9788DB2
• Base-36: 3A1WRSI

Squares and roots of 7138217394

• 7138217394 squared (7138217394²) is 50954147564004151236
• 7138217394 cubed (7138217394³) is 363721782437817160641021798984
• The square root of 7138217394 is 84487.9718894945
• The cube root of 7138217394 is 1925.4397056161

Scales and comparisons

• 7,138,217,394 seconds is equal to 226 years, 50 weeks, 4 days, 6 hours, 9 minutes, 54 seconds.
• To count from 1 to 7,138,217,394 would take you about four hundred fifty-three 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 7138217394 cubic inches would be around 160.5 feet tall.

Recreational maths with 7138217394

• 7138217394 backwards is 4937128317
• The number of decimal digits it has is: 10
• The sum of 7138217394's digits is 45
• More coming soon!