6401935890

Names of 6401935890

• Cardinal: 6401935890 can be written as Six billion, four hundred one million, nine hundred thirty-five thousand, eight hundred ninety.

Scientific notation

• Scientific notation: 6.40193589 × 10⁹

Factors of 6401935890

• Number of distinct prime factors ω(n): 7
• Total number of prime factors Ω(n): 9
• Sum of prime factors: 370

Divisors of 6401935890

• Number of divisors d(n): 288
• Complete list of divisors:
  1 2 3 5 6 7 9 10 14 15 18 21 29 30 35 42 43 45 58 63 70 86 87 90 105 126 129 145 174 203 210 215 258 261 281 290 301 315 387 406 430 435 522 562 602 609 630 645 774 841 843 870 903 1015 1218 1247 1290 1305 1405 1505 1682 1686 1806 1827 1935 1967 2030 2494 2523 2529 2610 2709 2810 3010 3045 3654 3741 3870 3934 4205 4215 4515 5046 5058 5418 5887 5901 6090 6235 7482 7569 8149 8410 8430 8729 9030 9135 9835 11223 11774 11802 12083 12470 12615 12645 13545 15138 16298 17458 17661 17703 18270 18705 19670 22446 24166 24447 25230 25290 26187 27090 29435 29505 35322 35406 36163 36249 37410 37845 40745 43645 48894 52374 52983 56115 57043 58870 59010 60415 72326 72498 73341 75690 78561 81490 84581 87290 88305 88515 105966 108489 108747 112230 114086 120830 122235 130935 146682 157122 169162 171129 176610 177030 180815 181245 216978 217494 236321 244470 253141 253743 261870 264915 285215 325467 342258 350407 361630 362490 366705 392805 422905 472642 506282 507486 513387 529830 542445 543735 570430 650934 700814 708963 733410 759423 761229 785610 845810 855645 1026774 1051221 1084890 1087470 1181605 1265705 1268715 1417926 1518846 1522458 1627335 1654247 1711290 1752035 2102442 2126889 2278269 2363210 2452849 2531410 2537430 2566935 3153663 3254670 3308494 3504070 3544815 3797115 3806145 4253778 4556538 4905698 4962741 5133870 5256105 6307326 7089630 7358547 7594230 7612290 8271235 9925482 10161803 10512210 10634445 11391345 12264245 14717094 14888223 15768315 16542470 20323606 21268890 22075641 22782690 24528490 24813705 29776446 30485409 31536630 36792735 44151282 49627410 50809015 60970818 71132621 73585470 74441115 91456227 101618030 110378205 142265242 148882230 152427045 182912454 213397863 220756410 304854090 355663105 426795726 457281135 640193589 711326210 914562270 1066989315 1280387178 2133978630 3200967945 6401935890
• Sum of all divisors σ(n): 20231392896
• Sum of proper divisors (its aliquot sum) s(n): 13829457006
• 6401935890 is an abundant number, because the sum of its proper divisors (13829457006) is greater than itself. Its abundance is 7427521116

Bases of 6401935890

• Binary: 101111101100101011100101000010010₂
• Hexadecimal: 0x17D95CA12
• Base-36: 2XVJPCI

Squares and roots of 6401935890

• 6401935890 squared (6401935890²) is 40984783139670092100
• 6401935890 cubed (6401935890³) is 262381954125720845374595469000
• The square root of 6401935890 is 80012.0983976797
• The cube root of 6401935890 is 1856.8227146859

Scales and comparisons

• 6,401,935,890 seconds is equal to 203 years, 29 weeks, 1 day, 11 hours, 31 minutes, 30 seconds.
• To count from 1 to 6,401,935,890 would take you about four hundred seven 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 6401935890 cubic inches would be around 154.7 feet tall.

Recreational maths with 6401935890

• 6401935890 backwards is 0985391046
• 6401935890 is a Harshad number.
• The number of decimal digits it has is: 10
• The sum of 6401935890's digits is 45
• More coming soon!