72469621728

Names of 72469621728

• Cardinal: 72469621728 can be written as Seventy-two billion, four hundred sixty-nine million, six hundred twenty-one thousand, seven hundred twenty-eight.

Scientific notation

• Scientific notation: 7.2469621728 × 10¹⁰

Factors of 72469621728

• Number of distinct prime factors ω(n): 4
• Total number of prime factors Ω(n): 16
• Sum of prime factors: 3031

Divisors of 72469621728

• Number of divisors d(n): 384
• Complete list of divisors:
  1 2 3 4 6 7 8 9 12 14 16 18 21 24 27 28 32 36 42 48 49 54 56 63 72 81 84 96 98 108 112 126 144 147 162 168 189 196 216 224 243 252 288 294 324 336 343 378 392 432 441 486 504 567 588 648 672 686 729 756 784 864 882 972 1008 1029 1134 1176 1296 1323 1372 1458 1512 1568 1701 1764 1944 2016 2058 2187 2268 2352 2592 2646 2744 2916 3019 3024 3087 3402 3528 3888 3969 4116 4374 4536 4704 5103 5292 5488 5832 6038 6048 6174 6804 7056 7776 7938 8232 8748 9057 9072 9261 10206 10584 10976 11664 11907 12076 12348 13608 14112 15309 15876 16464 17496 18114 18144 18522 20412 21133 21168 23328 23814 24152 24696 27171 27216 27783 30618 31752 32928 34992 35721 36228 37044 40824 42266 42336 47628 48304 49392 54342 54432 55566 61236 63399 63504 69984 71442 72456 74088 81513 81648 83349 84532 95256 96608 98784 107163 108684 111132 122472 126798 127008 142884 144912 147931 148176 163026 163296 166698 169064 190197 190512 214326 217368 222264 244539 244944 250047 253596 285768 289824 295862 296352 326052 333396 338128 380394 381024 428652 434736 443793 444528 489078 489888 500094 507192 570591 571536 591724 652104 666792 676256 733617 750141 760788 857304 869472 887586 889056 978156 1000188 1014384 1035517 1141182 1143072 1183448 1304208 1331379 1333584 1467234 1500282 1521576 1711773 1714608 1775172 1956312 2000376 2028768 2071034 2200851 2282364 2366896 2608416 2662758 2667168 2934468 3000564 3043152 3106551 3423546 3429216 3550344 3912624 3994137 4000752 4142068 4401702 4564728 4733792 5135319 5325516 5868936 6001128 6086304 6213102 6602553 6847092 7100688 7825248 7988274 8001504 8284136 8803404 9129456 9319653 10270638 10651032 11737872 11982411 12002256 12426204 13205106 13694184 14201376 15405957 15976548 16568272 17606808 18258912 18639306 20541276 21302064 23475744 23964822 24004512 24852408 26410212 27388368 27958959 30811914 31953096 33136544 35213616 35947233 37278612 41082552 42604128 46217871 47929644 49704816 52820424 54776736 55917918 61623828 63906192 70427232 71894466 74557224 82165104 83876877 92435742 95859288 99409632 105640848 107841699 111835836 123247656 127812384 143788932 149114448 164330208 167753754 184871484 191718576 211281696 215683398 223671672 246495312 251630631 287577864 298228896 323525097 335507508 369742968 383437152 431366796 447343344 492990624 503261262 575155728 647050194 671015016 739485936 754891893 862733592 894686688 1006522524 1150311456 1294100388 1342030032 1478971872 1509783786 1725467184 2013045048 2264675679 2588200776 2684060064 3019567572 3450934368 4026090096 4529351358 5176401552 6039135144 8052180192 9058702716 10352803104 12078270288 18117405432 24156540576 36234810864 72469621728
• Sum of all divisors σ(n): 249621120000
• Sum of proper divisors (its aliquot sum) s(n): 177151498272
• 72469621728 is an abundant number, because the sum of its proper divisors (177151498272) is greater than itself. Its abundance is 104681876544

Bases of 72469621728

• Binary: 1000011011111100001101010101111100000₂
• Hexadecimal: 0x10DF86ABE0
• Base-36: XAIJI00

Squares and roots of 72469621728

• 72469621728 squared (72469621728²) is 5251846073399409705984
• 72469621728 cubed (72469621728³) is 380599298312937344451152178020352
• The square root of 72469621728 is 269201.8234113581
• The cube root of 72469621728 is 4169.1929829001

Scales and comparisons

• 72,469,621,728 seconds is equal to 2,304 years, 16 weeks, 18 hours, 28 minutes, 48 seconds.
• To count from 1 to 72,469,621,728 would take you about four thousand, six hundred eight 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 72469621728 cubic inches would be around 347.4 feet tall.

Recreational maths with 72469621728

• 72469621728 backwards is 82712696427
• 72469621728 is a Harshad number.
• The number of decimal digits it has is: 11
• The sum of 72469621728's digits is 54
• More coming soon!