72345655872

Names of 72345655872

• Cardinal: 72345655872 can be written as Seventy-two billion, three hundred forty-five million, six hundred fifty-five thousand, eight hundred seventy-two.

Scientific notation

• Scientific notation: 7.2345655872 × 10¹⁰

Factors of 72345655872

• Number of distinct prime factors ω(n): 6
• Total number of prime factors Ω(n): 13
• Sum of prime factors: 8651

Divisors of 72345655872

• Number of divisors d(n): 448
• Complete list of divisors:
  1 2 3 4 6 7 8 9 12 14 16 17 18 21 24 27 28 32 34 36 41 42 48 51 54 56 63 64 68 72 82 84 96 102 108 112 119 123 126 136 144 153 164 168 189 192 204 216 224 238 246 252 272 287 288 306 328 336 357 369 378 408 432 448 459 476 492 504 544 574 576 612 656 672 697 714 738 756 816 861 864 918 952 984 1008 1071 1088 1107 1148 1224 1312 1344 1394 1428 1476 1512 1632 1722 1728 1836 1904 1968 2016 2091 2142 2214 2296 2448 2583 2624 2788 2856 2952 3024 3213 3264 3444 3672 3808 3936 4032 4182 4284 4428 4592 4879 4896 5166 5576 5712 5904 6048 6273 6426 6888 7344 7616 7749 7872 8364 8568 8581 8856 9184 9758 9792 10332 11152 11424 11808 12096 12546 12852 13776 14637 14688 15498 16728 17136 17162 17712 18368 18819 19516 20664 22304 22848 23616 25092 25704 25743 27552 29274 29376 30996 33456 34272 34324 35424 37638 39032 41328 43911 44608 50184 51408 51486 55104 58548 60067 61992 66912 68544 68648 70848 75276 77229 78064 82656 87822 100368 102816 102972 117096 120134 123984 131733 133824 137296 145877 150552 154458 156128 165312 175644 180201 200736 205632 205944 231687 234192 240268 247968 263466 274592 291754 301104 308916 312256 351288 351821 360402 401472 411888 437631 463374 468384 480536 495936 526932 540603 549184 583508 602208 617832 702576 703642 720804 823776 875262 926748 936768 961072 1021139 1053864 1055463 1081206 1167016 1204416 1235664 1312893 1405152 1407284 1441608 1621809 1647552 1750524 1853496 1922144 2042278 2107728 2110926 2162412 2334032 2462747 2471328 2625786 2810304 2814568 2883216 3063417 3166389 3243618 3501048 3706992 3844288 3938679 4084556 4215456 4221852 4324824 4668064 4925494 4942656 5251572 5629136 5766432 5980957 6126834 6332778 6487236 7002096 7388241 7413984 7877358 8169112 8430912 8443704 8649648 9190251 9336128 9499167 9850988 10503144 11258272 11532864 11961914 12253668 12665556 12974472 14004192 14776482 14827968 15754716 16338224 16887408 17299296 17942871 18380502 18998334 19701976 21006288 22164723 22516544 23923828 24507336 25331112 25948944 27570753 28008384 29552964 31509432 32676448 33774816 34598592 35885742 36761004 37996668 39403952 41866699 42012576 44329446 47847656 49014672 50662224 51897888 53828613 55141506 59105928 63018864 65352896 66494169 67549632 71771484 73522008 75993336 78807904 83733398 84025152 88658892 95695312 98029344 101324448 103795776 107657226 110283012 118211856 125600097 126037728 132988338 143542968 147044016 151986672 157615808 161485839 167466796 177317784 191390624 196058688 202648896 215314452 220566024 236423712 251200194 252075456 265976676 287085936 294088032 303973344 322971678 334933592 354635568 376800291 382781248 430628904 441132048 472847424 502400388 531953352 574171872 588176064 607946688 645943356 669867184 709271136 753600582 861257808 882264096 1004800776 1063906704 1130400873 1148343744 1291886712 1339734368 1418542272 1507201164 1722515616 1764528192 2009601552 2127813408 2260801746 2583773424 2679468736 3014402328 3445031232 4019203104 4255626816 4521603492 5167546848 6028804656 8038406208 9043206984 10335093696 12057609312 18086413968 24115218624 36172827936 72345655872
• Sum of all divisors σ(n): 263671994880
• Sum of proper divisors (its aliquot sum) s(n): 191326339008
• 72345655872 is an abundant number, because the sum of its proper divisors (191326339008) is greater than itself. Its abundance is 118980683136

Bases of 72345655872

• Binary: 1000011011000001000110001101001000000₂
• Hexadecimal: 0x10D8231A40
• Base-36: X8GQHC0

Squares and roots of 72345655872

• 72345655872 squared (72345655872²) is 5233893923549848080384
• 72345655872 cubed (72345655872³) is 378649488663689185861340657614848
• The square root of 72345655872 is 268971.4778038743
• The cube root of 72345655872 is 4166.8143652847

Scales and comparisons

• 72,345,655,872 seconds is equal to 2,300 years, 19 weeks, 23 hours, 31 minutes, 12 seconds.
• To count from 1 to 72,345,655,872 would take you about four thousand, six hundred 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 72345655872 cubic inches would be around 347.2 feet tall.

Recreational maths with 72345655872

• 72345655872 backwards is 27855654327
• 72345655872 is a Harshad number.
• The number of decimal digits it has is: 11
• The sum of 72345655872's digits is 54
• More coming soon!