30491721216

Names of 30491721216

• Cardinal: 30491721216 can be written as Thirty billion, four hundred ninety-one million, seven hundred twenty-one thousand, two hundred sixteen.

Scientific notation

• Scientific notation: 3.0491721216 × 10¹⁰

Factors of 30491721216

• Number of distinct prime factors ω(n): 4
• Total number of prime factors Ω(n): 15
• Sum of prime factors: 18245

Divisors of 30491721216

• Number of divisors d(n): 240
• Complete list of divisors:
  1 2 3 4 6 8 9 11 12 16 18 22 24 27 32 33 36 44 48 54 64 66 72 88 96 99 108 121 128 132 144 176 192 198 216 242 256 264 288 297 352 363 384 396 432 484 512 528 576 594 704 726 768 792 864 968 1056 1089 1152 1188 1408 1452 1536 1584 1728 1936 2112 2178 2304 2376 2816 2904 3168 3267 3456 3872 4224 4356 4608 4752 5632 5808 6336 6534 6912 7744 8448 8712 9504 11616 12672 13068 13824 15488 16896 17424 18229 19008 23232 25344 26136 30976 34848 36458 38016 46464 50688 52272 54687 61952 69696 72916 76032 92928 104544 109374 139392 145832 152064 164061 185856 200519 209088 218748 278784 291664 328122 401038 418176 437496 492183 557568 583328 601557 656244 802076 836352 874992 984366 1166656 1203114 1312488 1604152 1672704 1749984 1804671 1968732 2205709 2333312 2406228 2624976 3208304 3499968 3609342 3937464 4411418 4666624 4812456 5249952 5414013 6416608 6617127 6999936 7218684 7874928 8822836 9333248 9624912 10499904 10828026 12833216 13234254 13999872 14437368 15749856 17645672 19249824 19851381 20999808 21656052 25666432 26468508 27999744 28874736 31499712 35291344 38499648 39702762 41999616 43312104 51332864 52937016 57749472 59554143 62999424 70582688 76999296 79405524 83999232 86624208 102665728 105874032 115498944 119108286 125998848 141165376 153998592 158811048 173248416 211748064 230997888 238216572 251997696 282330752 307997184 317622096 346496832 423496128 461995776 476433144 564661504 635244192 692993664 846992256 923991552 952866288 1129323008 1270488384 1385987328 1693984512 1905732576 2540976768 2771974656 3387969024 3811465152 5081953536 7622930304 10163907072 15245860608 30491721216
• Sum of all divisors σ(n): 99214222800
• Sum of proper divisors (its aliquot sum) s(n): 68722501584
• 30491721216 is an abundant number, because the sum of its proper divisors (68722501584) is greater than itself. Its abundance is 38230780368

Bases of 30491721216

• Binary: 11100011001011100101011111000000000₂
• Hexadecimal: 0x71972BE00
• Base-36: E09ZEO0

Squares and roots of 30491721216

• 30491721216 squared (30491721216²) is 929745062714264518656
• 30491721216 cubed (30491721216³) is 28349527254235789969339183005696
• The square root of 30491721216 is 174618.7882674713
• The cube root of 30491721216 is 3124.1171681241

Scales and comparisons

• 30,491,721,216 seconds is equal to 969 years, 28 weeks, 1 day, 10 hours, 33 minutes, 36 seconds.
• To count from 1 to 30,491,721,216 would take you about one thousand, nine hundred thirty-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 30491721216 cubic inches would be around 260.3 feet tall.

Recreational maths with 30491721216

• 30491721216 backwards is 61212719403
• 30491721216 is a Harshad number.
• The number of decimal digits it has is: 11
• The sum of 30491721216's digits is 36
• More coming soon!