64653138720

Names of 64653138720

• Cardinal: 64653138720 can be written as Sixty-four billion, six hundred fifty-three million, one hundred thirty-eight thousand, seven hundred twenty.

Scientific notation

• Scientific notation: 6.465313872 × 10¹⁰

Factors of 64653138720

• Number of distinct prime factors ω(n): 6
• Total number of prime factors Ω(n): 11
• Sum of prime factors: 23845

Divisors of 64653138720

• Number of divisors d(n): 288
• Complete list of divisors:
  1 2 3 4 5 6 8 9 10 12 15 16 18 20 24 30 31 32 36 40 45 48 60 61 62 72 80 90 93 96 120 122 124 144 155 160 180 183 186 240 244 248 279 288 305 310 360 366 372 465 480 488 496 549 558 610 620 720 732 744 915 930 976 992 1098 1116 1220 1240 1395 1440 1464 1488 1830 1860 1891 1952 2196 2232 2440 2480 2745 2790 2928 2976 3660 3720 3782 4392 4464 4880 4960 5490 5580 5673 5856 7320 7440 7564 8784 8928 9455 9760 10980 11160 11346 14640 14880 15128 17019 17568 18910 21960 22320 22692 23743 28365 29280 30256 34038 37820 43920 44640 45384 47486 56730 60512 68076 71229 75640 85095 87840 90768 94972 113460 118715 136152 142458 151280 170190 181536 189944 213687 226920 237430 272304 284916 302560 340380 356145 379888 427374 453840 474860 544608 569832 680760 712290 736033 759776 854748 907680 949720 1068435 1139664 1361520 1424580 1448323 1472066 1709496 1899440 2136870 2208099 2279328 2723040 2849160 2896646 2944132 3418992 3680165 3798880 4273740 4344969 4416198 5698320 5793292 5888264 6624297 6837984 7241615 7360330 8547480 8689938 8832396 11040495 11396640 11586584 11776528 13034907 13248594 14483230 14720660 17094960 17379876 17664792 21724845 22080990 23173168 23553056 26069814 26497188 28966460 29441320 33121485 34189920 34759752 35329584 43449690 44161980 44898013 46346336 52139628 52994376 57932920 58882640 65174535 66242970 69519504 70659168 86899380 88323960 89796026 104279256 105988752 115865840 117765280 130349070 132485940 134694039 139039008 173798760 176647920 179592052 208558512 211977504 224490065 231731680 260698140 264971880 269388078 347597520 353295840 359184104 404082117 417117024 448980130 521396280 529943760 538776156 673470195 695195040 718368208 808164234 897960260 1042792560 1059887520 1077552312 1346940390 1436736416 1616328468 1795920520 2020410585 2085585120 2155104624 2693880780 3232656936 3591841040 4040821170 4310209248 5387761560 6465313872 7183682080 8081642340 10775523120 12930627744 16163284680 21551046240 32326569360 64653138720
• Sum of all divisors σ(n): 231489183744
• Sum of proper divisors (its aliquot sum) s(n): 166836045024
• 64653138720 is an abundant number, because the sum of its proper divisors (166836045024) is greater than itself. Its abundance is 102182906304

Bases of 64653138720

• Binary: 111100001101101000001001101100100000₂
• Hexadecimal: 0xF0DA09B20
• Base-36: TP8T540

Squares and roots of 64653138720

• 64653138720 squared (64653138720²) is 4180028346347563238400
• 64653138720 cubed (64653138720³) is 270251952529941211386247630848000
• The square root of 64653138720 is 254269.8148030945
• The cube root of 64653138720 is 4013.5610293313

Scales and comparisons

• 64,653,138,720 seconds is equal to 2,055 years, 40 weeks, 5 hours, 12 minutes.
• To count from 1 to 64,653,138,720 would take you about four thousand, one hundred eleven 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 64653138720 cubic inches would be around 334.5 feet tall.

Recreational maths with 64653138720

• 64653138720 backwards is 02783135646
• 64653138720 is a Harshad number.
• The number of decimal digits it has is: 11
• The sum of 64653138720's digits is 45
• More coming soon!