9138510720

Names of 9138510720

• Cardinal: 9138510720 can be written as Nine billion, one hundred thirty-eight million, five hundred ten thousand, seven hundred twenty.

Scientific notation

• Scientific notation: 9.13851072 × 10⁹

Factors of 9138510720

• Number of distinct prime factors ω(n): 4
• Total number of prime factors Ω(n): 16
• Sum of prime factors: 6539

Divisors of 9138510720

• Number of divisors d(n): 256
• 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 96 108 120 128 135 144 160 162 180 192 216 240 243 270 288 320 324 360 384 405 432 480 486 540 576 640 648 720 729 810 864 960 972 1080 1152 1215 1296 1440 1458 1620 1728 1920 1944 2160 2187 2430 2592 2880 2916 3240 3456 3645 3888 4320 4374 4860 5184 5760 5832 6480 6529 7290 7776 8640 8748 9720 10368 10935 11664 12960 13058 14580 15552 17280 17496 19440 19587 21870 23328 25920 26116 29160 31104 32645 34992 38880 39174 43740 46656 51840 52232 58320 58761 65290 69984 77760 78348 87480 93312 97935 104464 116640 117522 130580 139968 155520 156696 174960 176283 195870 208928 233280 235044 261160 279936 293805 313392 349920 352566 391740 417856 466560 470088 522320 528849 587610 626784 699840 705132 783480 835712 881415 940176 1044640 1057698 1175220 1253568 1399680 1410264 1566960 1586547 1762830 1880352 2089280 2115396 2350440 2507136 2644245 2820528 3133920 3173094 3525660 3760704 4178560 4230792 4700880 4759641 5288490 5641056 6267840 6346188 7051320 7521408 7932735 8461584 9401760 9519282 10576980 11282112 12535680 12692376 14102640 14278923 15865470 16923168 18803520 19038564 21153960 22564224 23798205 25384752 28205280 28557846 31730940 33846336 37607040 38077128 42307920 47596410 50769504 56410560 57115692 63461880 67692672 71394615 76154256 84615840 95192820 101539008 112821120 114231384 126923760 142789230 152308512 169231680 190385640 203078016 228462768 253847520 285578460 304617024 338463360 380771280 456925536 507695040 571156920 609234048 761542560 913851072 1015390080 1142313840 1523085120 1827702144 2284627680 3046170240 4569255360 9138510720
• Sum of all divisors σ(n): 32770152000
• Sum of proper divisors (its aliquot sum) s(n): 23631641280
• 9138510720 is an abundant number, because the sum of its proper divisors (23631641280) is greater than itself. Its abundance is 14493130560

Bases of 9138510720

• Binary: 1000100000101100101001101110000000₂
• Hexadecimal: 0x220B29B80
• Base-36: 474U000

Squares and roots of 9138510720

• 9138510720 squared (9138510720²) is 83512378179554918400
• 9138510720 cubed (9138510720³) is 763178763246556706627125248000
• The square root of 9138510720 is 95595.5580558009
• The cube root of 9138510720 is 2090.7004299033

Scales and comparisons

• 9,138,510,720 seconds is equal to 290 years, 29 weeks, 6 days, 19 hours, 12 minutes.
• To count from 1 to 9,138,510,720 would take you about five hundred eighty-one 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 9138510720 cubic inches would be around 174.2 feet tall.

Recreational maths with 9138510720

• 9138510720 backwards is 0270158319
• 9138510720 is a Harshad number.
• The number of decimal digits it has is: 10
• The sum of 9138510720's digits is 36
• More coming soon!