30721191072

Names of 30721191072

• Cardinal: 30721191072 can be written as Thirty billion, seven hundred twenty-one million, one hundred ninety-one thousand and seventy-two.

Scientific notation

• Scientific notation: 3.0721191072 × 10¹⁰

Factors of 30721191072

• Number of distinct prime factors ω(n): 7
• Total number of prime factors Ω(n): 11
• Sum of prime factors: 876

Divisors of 30721191072

• Number of divisors d(n): 384
• Complete list of divisors:
  1 2 3 4 6 8 11 12 13 16 22 24 26 32 33 39 43 44 48 52 66 71 78 86 88 96 104 129 132 142 143 156 172 176 208 213 258 264 284 286 312 344 352 416 426 429 473 516 528 559 568 572 624 688 733 781 852 858 923 946 1032 1056 1118 1136 1144 1248 1376 1419 1466 1562 1677 1704 1716 1846 1892 2064 2199 2236 2272 2288 2343 2769 2838 2932 3053 3124 3354 3408 3432 3692 3784 4128 4398 4472 4576 4686 5538 5676 5864 6106 6149 6248 6708 6816 6864 7384 7568 8063 8796 8944 9159 9372 9529 10153 11076 11352 11728 12212 12298 12496 13416 13728 14768 15136 16126 17592 17888 18318 18447 18744 19058 20306 22152 22704 23456 24189 24424 24596 24992 26832 28587 29536 30459 31519 32252 33583 35184 36636 36894 37488 38116 39689 40612 44304 45408 48378 48848 49192 52043 53664 57174 60918 63038 64504 67166 70368 73272 73788 74976 76232 79378 81224 88608 94557 96756 97696 98384 100749 104086 104819 114348 119067 121836 126076 129008 134332 146544 147576 152464 156129 158756 162448 189114 193512 196768 201498 208172 209638 228696 238134 243672 252152 258016 268664 293088 295152 304928 312258 314457 317512 324896 346709 378228 387024 402996 409747 416344 419276 436579 457392 476268 487344 504304 537328 572473 590304 624516 628914 635024 676559 693418 756456 774048 805992 819494 832688 838552 873158 914784 952536 974688 1008608 1040127 1074656 1144946 1229241 1249032 1257828 1270048 1309737 1353118 1386836 1512912 1611984 1638988 1665376 1677104 1717419 1746316 1905072 2029677 2080254 2237849 2289892 2458482 2498064 2515656 2619474 2706236 2773672 3025824 3223968 3277976 3354208 3434838 3492632 3810144 4059354 4160508 4475698 4507217 4579784 4916964 4996128 5031312 5238948 5412472 5547344 6555952 6713547 6869676 6985264 7442149 8118708 8321016 8951396 9014434 9159568 9833928 10062624 10477896 10824944 11094688 13111904 13427094 13521651 13739352 13970528 14884298 16237416 16642032 17902792 18028868 18319136 19667856 20955792 21649888 22326447 24616339 26854188 27043302 27478704 29092037 29768596 32474832 33284064 35805584 36057736 39335712 41911584 44652894 49232678 53708376 54086604 54957408 58184074 59537192 64949664 71611168 72115472 73849017 87276111 89305788 98465356 107416752 108173208 116368148 119074384 144230944 147698034 174552222 178611576 196930712 214833504 216346416 232736296 238148768 295396068 320012407 349104444 357223152 393861424 432692832 465472592 590792136 640024814 698208888 714446304 787722848 930945184 960037221 1181584272 1280049628 1396417776 1920074442 2363168544 2560099256 2792835552 3840148884 5120198512 7680297768 10240397024 15360595536 30721191072
• Sum of all divisors σ(n): 98444408832
• Sum of proper divisors (its aliquot sum) s(n): 67723217760
• 30721191072 is an abundant number, because the sum of its proper divisors (67723217760) is greater than itself. Its abundance is 37002026688

Bases of 30721191072

• Binary: 11100100111001000000010110010100000₂
• Hexadecimal: 0x727202CA0
• Base-36: E42LQQO

Squares and roots of 30721191072

• 30721191072 squared (30721191072²) is 943791580882332509184
• 30721191072 cubed (30721191072³) is 28994401488431079363678858805248
• The square root of 30721191072 is 175274.6161656047
• The cube root of 30721191072 is 3131.9345888811

Scales and comparisons

• 30,721,191,072 seconds is equal to 976 years, 43 weeks, 4 days, 8 hours, 11 minutes, 12 seconds.
• To count from 1 to 30,721,191,072 would take you about one thousand, nine hundred fifty-three 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 30721191072 cubic inches would be around 261 feet tall.

Recreational maths with 30721191072

• 30721191072 backwards is 27019112703
• 30721191072 is a Harshad number.
• The number of decimal digits it has is: 11
• The sum of 30721191072's digits is 33
• More coming soon!