18012069894

Names of 18012069894

• Cardinal: 18012069894 can be written as Eighteen billion, twelve million, sixty-nine thousand, eight hundred ninety-four.

Scientific notation

• Scientific notation: 1.8012069894 × 10¹⁰

Factors of 18012069894

• Number of distinct prime factors ω(n): 7
• Total number of prime factors Ω(n): 7
• Sum of prime factors: 1190

Divisors of 18012069894

• Number of divisors d(n): 128
• Complete list of divisors:
  1 2 3 6 7 13 14 21 26 39 42 78 91 127 182 254 273 381 421 546 617 762 842 889 1234 1263 1651 1778 1851 2526 2667 2947 3302 3702 4319 4953 5334 5473 5894 8021 8638 8841 9906 10946 11557 12957 16042 16419 17682 23114 24063 25914 32838 34671 38311 48126 53467 56147 69342 76622 78359 106934 112294 114933 156718 160401 168441 229866 235077 259757 320802 336882 374269 470154 519514 548513 695071 748538 779271 1018667 1097026 1122807 1390142 1558542 1645539 1818299 2037334 2085213 2245614 3056001 3291078 3376841 3636598 4170426 4865497 5454897 6112002 6753682 7130669 9730994 10130523 10909794 14261338 14596491 20261046 21392007 23637887 29192982 32989139 42784014 47275774 65978278 70913661 98967417 141827322 197934834 230923973 428858807 461847946 692771919 857717614 1286576421 1385543838 2573152842 3002011649 6004023298 9006034947 18012069894
• Sum of all divisors σ(n): 44865257472
• Sum of proper divisors (its aliquot sum) s(n): 26853187578
• 18012069894 is an abundant number, because the sum of its proper divisors (26853187578) is greater than itself. Its abundance is 8841117684

Bases of 18012069894

• Binary: 10000110001100110100110000000000110₂
• Hexadecimal: 0x4319A6006
• Base-36: 89VX62U

Squares and roots of 18012069894

• 18012069894 squared (18012069894²) is 324434661866341171236
• 18012069894 cubed (18012069894³) is 5843739805572793662352654368984
• The square root of 18012069894 is 134209.0529509837
• The cube root of 18012069894 is 2621.3270424157

Scales and comparisons

• 18,012,069,894 seconds is equal to 572 years, 37 weeks, 6 days, 44 minutes, 54 seconds.
• To count from 1 to 18,012,069,894 would take you about one thousand, one hundred forty-five 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 18012069894 cubic inches would be around 218.4 feet tall.

Recreational maths with 18012069894

• 18012069894 backwards is 49896021081
• The number of decimal digits it has is: 11
• The sum of 18012069894's digits is 48
• More coming soon!