72005137920

Names of 72005137920

• Cardinal: 72005137920 can be written as Seventy-two billion, five million, one hundred thirty-seven thousand, nine hundred twenty.

Scientific notation

• Scientific notation: 7.200513792 × 10¹⁰

Factors of 72005137920

• Number of distinct prime factors ω(n): 4
• Total number of prime factors Ω(n): 20
• Sum of prime factors: 1439

Divisors of 72005137920

• Number of divisors d(n): 400
• Complete list of divisors:
  1 2 3 4 5 6 8 9 10 12 15 16 18 20 24 27 30 32 36 40 45 48 54 60 64 72 80 81 90 96 108 120 128 135 144 160 162 180 192 216 240 243 256 270 288 320 324 360 384 405 432 480 486 512 540 576 640 648 720 729 768 810 864 960 972 1080 1152 1215 1280 1296 1429 1440 1458 1536 1620 1728 1920 1944 2160 2187 2304 2430 2560 2592 2858 2880 2916 3240 3456 3645 3840 3888 4287 4320 4374 4608 4860 5184 5716 5760 5832 6480 6561 6912 7145 7290 7680 7776 8574 8640 8748 9720 10368 10935 11432 11520 11664 12861 12960 13122 13824 14290 14580 15552 17148 17280 17496 19440 19683 20736 21435 21870 22864 23040 23328 25722 25920 26244 28580 29160 31104 32805 34296 34560 34992 38583 38880 39366 41472 42870 43740 45728 46656 51444 51840 52488 57160 58320 62208 64305 65610 68592 69120 69984 77166 77760 78732 85740 87480 91456 93312 98415 102888 103680 104976 114320 115749 116640 124416 128610 131220 137184 139968 154332 155520 157464 171480 174960 182912 186624 192915 196830 205776 207360 209952 228640 231498 233280 257220 262440 274368 279936 308664 311040 314928 342960 347247 349920 365824 373248 385830 393660 411552 419904 457280 462996 466560 514440 524880 548736 559872 578745 617328 622080 629856 685920 694494 699840 731648 771660 787320 823104 839808 914560 925992 933120 1028880 1041741 1049760 1097472 1119744 1157490 1234656 1259712 1371840 1388988 1399680 1543320 1574640 1646208 1679616 1736235 1829120 1851984 1866240 2057760 2083482 2099520 2194944 2314980 2469312 2519424 2743680 2777976 2799360 3086640 3125223 3149280 3292416 3359232 3472470 3658240 3703968 4115520 4166964 4199040 4629960 4938624 5038848 5208705 5487360 5555952 5598720 6173280 6250446 6298560 6584832 6944940 7407936 8231040 8333928 8398080 9259920 9375669 9877248 10077696 10417410 10974720 11111904 12346560 12500892 12597120 13889880 14815872 15626115 16462080 16667856 16796160 18519840 18751338 19754496 20834820 22223808 24693120 25001784 25194240 27779760 28127007 29631744 31252230 32924160 33335712 37039680 37502676 41669640 44447616 46878345 49386240 50003568 50388480 55559520 56254014 59263488 62504460 66671424 74079360 75005352 83339280 88895232 93756690 98772480 100007136 111119040 112508028 125008920 133342848 140635035 148158720 150010704 166678560 177790464 187513380 200014272 222238080 225016056 250017840 266685696 281270070 296317440 300021408 333357120 375026760 400028544 444476160 450032112 500035680 533371392 562540140 600042816 666714240 750053520 800057088 888952320 900064224 1000071360 1125080280 1200085632 1333428480 1500107040 1600114176 1800128448 2000142720 2250160560 2400171264 2666856960 3000214080 3600256896 4000285440 4500321120 4800342528 6000428160 7200513792 8000570880 9000642240 12000856320 14401027584 18001284480 24001712640 36002568960 72005137920
• Sum of all divisors σ(n): 259142186160
• Sum of proper divisors (its aliquot sum) s(n): 187137048240
• 72005137920 is an abundant number, because the sum of its proper divisors (187137048240) is greater than itself. Its abundance is 115131910320

Bases of 72005137920

• Binary: 1000011000011110101110011011000000000₂
• Hexadecimal: 0x10C3D73600
• Base-36: X2U0000

Squares and roots of 72005137920

• 72005137920 squared (72005137920²) is 5184739886878221926400
• 72005137920 cubed (72005137920³) is 373327910633991568054800089088000
• The square root of 72005137920 is 268337.7310778341
• The cube root of 72005137920 is 4160.2666002713

Scales and comparisons

• 72,005,137,920 seconds is equal to 2,289 years, 28 weeks, 19 hours, 12 minutes.
• To count from 1 to 72,005,137,920 would take you about four thousand, five hundred seventy-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 72005137920 cubic inches would be around 346.7 feet tall.

Recreational maths with 72005137920

• 72005137920 backwards is 02973150027
• 72005137920 is a Harshad number.
• The number of decimal digits it has is: 11
• The sum of 72005137920's digits is 36
• More coming soon!