64449727420

Names of 64449727420

• Cardinal: 64449727420 can be written as Sixty-four billion, four hundred forty-nine million, seven hundred twenty-seven thousand, four hundred twenty.

Scientific notation

• Scientific notation: 6.444972742 × 10¹⁰

Factors of 64449727420

• Number of distinct prime factors ω(n): 6
• Total number of prime factors Ω(n): 7
• Sum of prime factors: 10589

Divisors of 64449727420

• Number of divisors d(n): 96
• Complete list of divisors:
  1 2 4 5 10 13 20 26 52 65 83 130 166 260 293 332 415 586 830 1079 1172 1465 1660 2158 2930 3809 4316 5395 5860 7618 10193 10790 15236 19045 20386 21580 24319 38090 40772 48638 50965 76180 97276 101930 121595 132509 203860 243190 265018 316147 486380 530036 632294 662545 846019 1264588 1325090 1580735 1692038 2650180 2986549 3161470 3384076 4230095 5973098 6322940 8460190 10998247 11946196 14932745 16920380 21996494 29865490 38825137 43992988 54991235 59730980 77650274 109982470 155300548 194125685 219964940 247883567 388251370 495767134 776502740 991534268 1239417835 2478835670 3222486371 4957671340 6444972742 12889945484 16112431855 32224863710 64449727420
• Sum of all divisors σ(n): 148029602112
• Sum of proper divisors (its aliquot sum) s(n): 83579874692
• 64449727420 is an abundant number, because the sum of its proper divisors (83579874692) is greater than itself. Its abundance is 19130147272

Bases of 64449727420

• Binary: 111100000001100000001100101110111100₂
• Hexadecimal: 0xF0180CBBC
• Base-36: TLVPBY4

Squares and roots of 64449727420

• 64449727420 squared (64449727420²) is 4153767364512299856400
• 64449727420 cubed (64449727420³) is 267709174408909506982285142488000
• The square root of 64449727420 is 253869.5086456819
• The cube root of 64449727420 is 4009.3474604803

Scales and comparisons

• 64,449,727,420 seconds is equal to 2,049 years, 15 weeks, 4 days, 22 hours, 3 minutes, 40 seconds.
• To count from 1 to 64,449,727,420 would take you about four thousand and ninety-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 64449727420 cubic inches would be around 334.1 feet tall.

Recreational maths with 64449727420

• 64449727420 backwards is 02472794446
• The number of decimal digits it has is: 11
• The sum of 64449727420's digits is 49
• More coming soon!