72745517664

Names of 72745517664

• Cardinal: 72745517664 can be written as Seventy-two billion, seven hundred forty-five million, five hundred seventeen thousand, six hundred sixty-four.

Scientific notation

• Scientific notation: 7.2745517664 × 10¹⁰

Factors of 72745517664

• Number of distinct prime factors ω(n): 6
• Total number of prime factors Ω(n): 12
• Sum of prime factors: 813

Divisors of 72745517664

• Number of divisors d(n): 384
• Complete list of divisors:
  1 2 3 4 6 8 9 12 16 18 19 24 27 32 36 37 38 48 54 57 72 74 76 96 108 111 114 144 148 152 171 216 222 228 229 288 296 304 333 342 432 444 456 458 513 523 592 608 666 684 687 703 864 888 912 916 999 1026 1046 1184 1332 1368 1374 1406 1569 1776 1824 1832 1998 2052 2061 2092 2109 2664 2736 2748 2812 3138 3552 3664 3996 4104 4122 4184 4218 4351 4707 5328 5472 5496 5624 6183 6276 6327 7328 7992 8208 8244 8368 8436 8473 8702 9414 9937 10656 10992 11248 12366 12552 12654 13053 14121 15984 16416 16488 16736 16872 16946 17404 18828 18981 19351 19874 21984 22496 24732 25104 25308 25419 26106 28242 29811 31968 32976 33744 33892 34808 37656 37962 38702 39159 39748 49464 50208 50616 50838 52212 56484 58053 59622 65952 67488 67784 69616 75312 75924 76257 77404 78318 79496 89433 98928 101232 101676 104424 112968 116106 117477 119244 119767 135568 139232 150624 151848 152514 154808 156636 158992 160987 174159 178866 197856 202464 203352 208848 225936 228771 232212 234954 238488 239534 268299 271136 303696 305028 309616 313272 317984 321974 348318 357732 359301 367669 406704 417696 451872 457542 464424 469908 476976 479068 482961 522477 536598 607392 610056 619232 626544 643948 696636 715464 718602 735338 813408 915084 928848 939816 953952 958136 965922 1044954 1073196 1077903 1103007 1220112 1253088 1287896 1393272 1430928 1437204 1448883 1470676 1830168 1857696 1879632 1916272 1931844 2089908 2146392 2155806 2206014 2275573 2440224 2575792 2786544 2861856 2874408 2897766 2941352 3233709 3309021 3660336 3759264 3832544 3863688 4179816 4292784 4311612 4346649 4412028 4431379 4551146 5151584 5573088 5748816 5795532 5882704 6467418 6618042 6826719 7320672 7727376 8359632 8585568 8623224 8693298 8824056 8862758 9102292 9927063 11497632 11591064 11765408 12934836 13236084 13294137 13653438 15454752 16719264 17246448 17386596 17648112 17725516 18204584 19854126 20480157 23182128 25869672 26472168 26588274 27306876 34492896 34773192 35296224 35451032 36409168 39708252 39882411 40960314 46364256 51739344 52944336 53176548 54613752 61440471 69546384 70902064 72818336 79416504 79764822 81920628 84196201 103478688 105888672 106353096 109227504 119647233 122880942 139092768 141804128 158833008 159529644 163841256 168392402 212706192 218455008 239294466 245761884 252588603 317666016 319059288 327682512 336784804 425412384 478588932 491523768 505177206 638118576 655365024 673569608 757765809 957177864 983047536 1010354412 1276237152 1347139216 1515531618 1914355728 1966095072 2020708824 2273297427 2694278432 3031063236 3828711456 4041417648 4546594854 6062126472 8082835296 9093189708 12124252944 18186379416 24248505888 36372758832 72745517664
• Sum of all divisors σ(n): 230819904000
• Sum of proper divisors (its aliquot sum) s(n): 158074386336
• 72745517664 is an abundant number, because the sum of its proper divisors (158074386336) is greater than itself. Its abundance is 85328868672

Bases of 72745517664

• Binary: 1000011101111111110001000001001100000₂
• Hexadecimal: 0x10EFF88260
• Base-36: XF2SWO0

Squares and roots of 72745517664

• 72745517664 squared (72745517664²) is 5291910340203336016896
• 72745517664 cubed (72745517664³) is 384962757129566029568835370450944
• The square root of 72745517664 is 269713.7698820735
• The cube root of 72745517664 is 4174.4770672131

Scales and comparisons

• 72,745,517,664 seconds is equal to 2,313 years, 4 weeks, 2 days, 14 minutes, 24 seconds.
• To count from 1 to 72,745,517,664 would take you about four thousand, six hundred twenty-six 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 72745517664 cubic inches would be around 347.9 feet tall.

Recreational maths with 72745517664

• 72745517664 backwards is 46671554727
• 72745517664 is a Harshad number.
• The number of decimal digits it has is: 11
• The sum of 72745517664's digits is 54
• More coming soon!