644872131072

Names of 644872131072

• Cardinal: 644872131072 can be written as Six hundred forty-four billion, eight hundred seventy-two million, one hundred thirty-one thousand and seventy-two.

Scientific notation

• Scientific notation: 6.44872131072 × 10¹¹

Factors of 644872131072

• Number of distinct prime factors ω(n): 6
• Total number of prime factors Ω(n): 15
• Sum of prime factors: 3309

Divisors of 644872131072

• Number of divisors d(n): 480
• Complete list of divisors:
  1 2 3 4 6 8 9 12 13 16 18 24 26 32 36 39 43 48 52 64 72 78 79 86 96 104 117 128 129 144 156 158 172 192 208 234 237 256 258 288 312 316 344 384 387 416 468 474 512 516 559 576 624 632 688 711 768 774 832 936 948 1027 1032 1118 1152 1248 1264 1376 1422 1536 1548 1664 1677 1872 1896 2054 2064 2236 2304 2496 2528 2752 2844 3081 3096 3169 3328 3354 3397 3744 3792 4108 4128 4472 4608 4992 5031 5056 5504 5688 6162 6192 6338 6656 6708 6794 7488 7584 8216 8256 8944 9243 9507 9984 10062 10112 10191 11008 11376 12324 12384 12676 13416 13588 14976 15168 16432 16512 17888 18486 19014 19968 20124 20224 20382 22016 22752 24648 24768 25352 26832 27176 28521 29952 30336 30573 32864 33024 35776 36972 38028 40248 40448 40764 41197 44161 45504 49296 49536 50704 53664 54352 57042 59904 60672 61146 65728 66048 71552 73944 76056 80496 81528 82394 88322 91008 98592 99072 101408 107328 108704 114084 121344 122292 123591 131456 132483 136267 143104 147888 152112 160992 163056 164788 176644 182016 197184 198144 202816 214656 217408 228168 244584 247182 250351 262912 264966 272534 286208 295776 304224 321984 326112 329576 353288 364032 370773 394368 397449 405632 408801 429312 434816 456336 489168 494364 500702 525824 529932 545068 591552 608448 643968 652224 659152 706576 741546 751053 788736 794898 811264 817602 858624 869632 912672 978336 988728 1001404 1059864 1090136 1183104 1216896 1226403 1287936 1304448 1318304 1413152 1483092 1502106 1577472 1589796 1622528 1635204 1739264 1771471 1825344 1956672 1977456 2002808 2119728 2180272 2253159 2366208 2433792 2452806 2575872 2608896 2636608 2826304 2966184 3004212 3179592 3254563 3270408 3542942 3650688 3913344 3954912 4005616 4239456 4360544 4506318 4732416 4867584 4905612 5217792 5273216 5314413 5652608 5932368 6008424 6359184 6509126 6540816 7085884 7301376 7826688 7909824 8011232 8478912 8721088 9012636 9763689 9811224 10546432 10628826 10765093 11305216 11864736 12016848 12718368 13018252 13081632 14171768 14602752 15653376 15819648 15943239 16022464 16957824 17442176 18025272 19527378 19622448 21092864 21257652 21530186 22610432 23729472 24033696 25436736 26036504 26163264 28343536 29291067 31639296 31886478 32044928 32295279 33915648 34884352 36050544 39054756 39244896 42515304 43060372 47458944 48067392 50873472 52073008 52326528 56687072 58582134 63278592 63772956 64089856 64590558 67831296 69768704 72101088 78109512 78489792 85030608 86120744 94917888 96134784 96885837 101746944 104146016 104653056 113374144 117164268 127545912 128179712 129181116 139946209 144202176 156219024 156979584 170061216 172241488 189835776 192269568 193771674 203493888 208292032 209306112 226748288 234328536 255091824 258362232 279892418 288404352 312438048 313959168 340122432 344482976 384539136 387543348 416584064 419838627 453496576 468657072 510183648 516724464 559784836 576808704 624876096 627918336 680244864 688965952 775086696 833168128 839677254 906993152 937314144 1020367296 1033448928 1119569672 1153617408 1249752192 1259515881 1360489728 1377931904 1550173392 1666336256 1679354508 1874628288 2040734592 2066897856 2239139344 2499504384 2519031762 2720979456 2755863808 3100346784 3358709016 3749256576 4081469184 4133795712 4478278688 4999008768 5038063524 5511727616 6200693568 6717418032 7498513152 8162938368 8267591424 8956557376 10076127048 12401387136 13434836064 14997026304 16535182848 17913114752 20152254096 24802774272 26869672128 35826229504 40304508192 49605548544 53739344256 71652459008 80609016384 107478688512 161218032768 214957377024 322436065536 644872131072
• Sum of all divisors σ(n): 2077537862400
• Sum of proper divisors (its aliquot sum) s(n): 1432665731328
• 644872131072 is an abundant number, because the sum of its proper divisors (1432665731328) is greater than itself. Its abundance is 787793600256

Bases of 644872131072

• Binary: 1001011000100101010111111101001000000000₂
• Hexadecimal: 0x96255FD200
• Base-36: 88907SW0

Squares and roots of 644872131072

• 644872131072 squared (644872131072²) is 415860065433342747869184
• 644872131072 cubed (644872131072³) is 268176566623741100982997073157685248
• The square root of 644872131072 is 803039.3085472217
• The cube root of 644872131072 is 8639.5516022439

Scales and comparisons

• 644,872,131,072 seconds is equal to 20,504 years, 48 weeks, 5 days, 19 hours, 31 minutes, 12 seconds.
• To count from 1 to 644,872,131,072 would take you about forty-one thousand and 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 644872131072 cubic inches would be around 720 feet tall.

Recreational maths with 644872131072

• 644872131072 backwards is 270131278446
• The number of decimal digits it has is: 12
• The sum of 644872131072's digits is 45
• More coming soon!