21178593072

Names of 21178593072

• Cardinal: 21178593072 can be written as Twenty-one billion, one hundred seventy-eight million, five hundred ninety-three thousand and seventy-two.

Scientific notation

• Scientific notation: 2.1178593072 × 10¹⁰

Factors of 21178593072

• Number of distinct prime factors ω(n): 5
• Total number of prime factors Ω(n): 16
• Sum of prime factors: 764

Divisors of 21178593072

• Number of divisors d(n): 400
• Complete list of divisors:
  1 2 3 4 6 7 8 9 12 13 14 16 18 21 24 26 27 28 36 39 42 48 52 54 56 63 72 78 81 84 91 104 108 112 117 126 144 156 162 168 182 189 208 216 234 243 252 273 312 324 336 351 364 378 432 468 486 504 546 567 624 648 702 728 729 739 756 819 936 972 1008 1053 1092 1134 1296 1404 1456 1458 1478 1512 1638 1701 1872 1944 2106 2184 2187 2217 2268 2457 2808 2916 2956 3024 3159 3276 3402 3888 4212 4368 4374 4434 4536 4914 5103 5173 5616 5832 5912 6318 6552 6561 6651 6804 7371 8424 8748 8868 9072 9477 9607 9828 10206 10346 11664 11824 12636 13104 13122 13302 13608 14742 15309 15519 16848 17496 17736 18954 19214 19656 19683 19953 20412 20692 22113 25272 26244 26604 27216 28431 28821 29484 30618 31038 34992 35472 37908 38428 39312 39366 39906 40824 41384 44226 45927 46557 50544 52488 53208 56862 57642 58968 59859 61236 62076 66339 67249 75816 76856 78732 79812 81648 82768 85293 86463 88452 91854 93114 104976 106416 113724 115284 117936 119718 122472 124152 132678 134498 137781 139671 151632 153712 157464 159624 170586 172926 176904 179577 183708 186228 199017 201747 227448 230568 239436 244944 248304 255879 259389 265356 268996 275562 279342 314928 319248 341172 345852 353808 359154 367416 372456 398034 403494 419013 454896 461136 478872 511758 518778 530712 537992 538731 551124 558684 597051 605241 682344 691704 718308 734832 744912 778167 796068 806988 838026 957744 1023516 1037556 1061424 1075984 1077462 1102248 1117368 1194102 1210482 1257039 1364688 1383408 1436616 1556334 1592136 1613976 1616193 1676052 1791153 1815723 2047032 2075112 2154924 2204496 2234736 2334501 2388204 2420964 2514078 2873232 3112668 3184272 3227952 3232386 3352104 3582306 3631446 3771117 4094064 4150224 4309848 4669002 4776408 4841928 4848579 5028156 5447169 6225336 6464772 6704208 7003503 7164612 7262892 7542234 8619696 9338004 9552816 9683856 9697158 10056312 10894338 11313351 12450672 12929544 14007006 14329224 14525784 14545737 15084468 16341507 18676008 19394316 20112624 21010509 21788676 22626702 25859088 28014012 28658448 29051568 29091474 30168936 32683014 33940053 37352016 38788632 42021018 43577352 45253404 49024521 56028024 58182948 60337872 63031527 65366028 67880106 77577264 84042036 87154704 90506808 98049042 101820159 112056048 116365896 126063054 130732056 135760212 147073563 168084072 181013616 189094581 196098084 203640318 232731792 252126108 261464112 271520424 294147126 336168144 378189162 392196168 407280636 441220689 504252216 543040848 588294252 756378324 784392336 814561272 882441378 1008504432 1176588504 1323662067 1512756648 1629122544 1764882756 2353177008 2647324134 3025513296 3529765512 5294648268 7059531024 10589296536 21178593072
• Sum of all divisors σ(n): 75855422720
• Sum of proper divisors (its aliquot sum) s(n): 54676829648
• 21178593072 is an abundant number, because the sum of its proper divisors (54676829648) is greater than itself. Its abundance is 33498236576

Bases of 21178593072

• Binary: 10011101110010101111010111100110000₂
• Hexadecimal: 0x4EE57AF30
• Base-36: 9Q96R00

Squares and roots of 21178593072

• 21178593072 squared (21178593072²) is 448532804509366397184
• 21178593072 cubed (21178593072³) is 9499293746146797538510662709248
• The square root of 21178593072 is 145528.6675263675
• The cube root of 21178593072 is 2766.7231370937

Scales and comparisons

• 21,178,593,072 seconds is equal to 673 years, 21 weeks, 3 days, 14 hours, 31 minutes, 12 seconds.
• To count from 1 to 21,178,593,072 would take you about one thousand, three hundred forty-six 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 21178593072 cubic inches would be around 230.6 feet tall.

Recreational maths with 21178593072

• 21178593072 backwards is 27039587112
• The number of decimal digits it has is: 11
• The sum of 21178593072's digits is 45
• More coming soon!