64941996720

Names of 64941996720

• Cardinal: 64941996720 can be written as Sixty-four billion, nine hundred forty-one million, nine hundred ninety-six thousand, seven hundred twenty.

Scientific notation

• Scientific notation: 6.494199672 × 10¹⁰

Factors of 64941996720

• Number of distinct prime factors ω(n): 5
• Total number of prime factors Ω(n): 11
• Sum of prime factors: 334

Divisors of 64941996720

• Number of divisors d(n): 200
• Complete list of divisors:
  1 2 3 4 5 6 8 10 12 15 16 20 24 30 31 40 48 60 62 80 93 120 124 155 186 240 248 293 310 372 465 496 586 620 744 879 930 961 1172 1240 1465 1488 1758 1860 1922 2344 2480 2883 2930 3516 3720 3844 4395 4688 4805 5766 5860 7032 7440 7688 8790 9083 9610 11532 11720 14064 14415 15376 17580 18166 19220 23064 23440 27249 28830 29791 35160 36332 38440 45415 46128 54498 57660 59582 70320 72664 76880 89373 90830 108996 115320 119164 136245 145328 148955 178746 181660 217992 230640 238328 272490 281573 297910 357492 363320 435984 446865 476656 544980 563146 595820 714984 726640 844719 893730 923521 1089960 1126292 1191640 1407865 1429968 1689438 1787460 1847042 2179920 2252584 2383280 2770563 2815730 3378876 3574920 3694084 4223595 4505168 4617605 5541126 5631460 6757752 7149840 7388168 8447190 8728763 9235210 11082252 11262920 13515504 13852815 14776336 16894380 17457526 18470420 22164504 22525840 26186289 27705630 33788760 34915052 36940840 43643815 44329008 52372578 55411260 67577520 69830104 73881680 87287630 104745156 110822520 130931445 139660208 174575260 209490312 221645040 261862890 270591653 349150520 418980624 523725780 541183306 698301040 811774959 1047451560 1082366612 1352958265 1623549918 2094903120 2164733224 2705916530 3247099836 4058874795 4329466448 5411833060 6494199672 8117749590 10823666120 12988399344 16235499180 21647332240 32470998360 64941996720
• Sum of all divisors σ(n): 208740858480
• Sum of proper divisors (its aliquot sum) s(n): 143798861760
• 64941996720 is an abundant number, because the sum of its proper divisors (143798861760) is greater than itself. Its abundance is 78856865040

Bases of 64941996720

• Binary: 111100011110110110000011101010110000₂
• Hexadecimal: 0xF1ED83AB0
• Base-36: TU0SDDC

Squares and roots of 64941996720

• 64941996720 squared (64941996720²) is 4217462937980490758400
• 64941996720 cubed (64941996720³) is 273890464285050594256003112448000
• The square root of 64941996720 is 254837.1965000401
• The cube root of 64941996720 is 4019.5294268613

Scales and comparisons

• 64,941,996,720 seconds is equal to 2,064 years, 49 weeks, 4 days, 11 hours, 32 minutes.
• To count from 1 to 64,941,996,720 would take you about four thousand, one hundred twenty-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 64941996720 cubic inches would be around 335 feet tall.

Recreational maths with 64941996720

• 64941996720 backwards is 02769914946
• The number of decimal digits it has is: 11
• The sum of 64941996720's digits is 57
• More coming soon!