21684097149

Names of 21684097149

• Cardinal: 21684097149 can be written as Twenty-one billion, six hundred eighty-four million, ninety-seven thousand, one hundred forty-nine.

Scientific notation

• Scientific notation: 2.1684097149 × 10¹⁰

Factors of 21684097149

• Number of distinct prime factors ω(n): 7
• Total number of prime factors Ω(n): 7
• Sum of prime factors: 627

Divisors of 21684097149

• Number of divisors d(n): 128
• Complete list of divisors:
  1 3 11 13 19 33 39 57 71 89 143 209 213 247 267 421 429 627 741 781 923 979 1157 1263 1349 1691 2343 2717 2769 2937 3471 4047 4631 5073 5473 6319 7999 8151 10153 12727 13893 14839 16419 17537 18601 18957 21983 23997 29891 30459 37469 38181 44517 52611 55803 60203 65949 69509 82147 87989 89673 103987 112407 120061 180609 192907 208527 241813 246441 263967 311961 328801 360183 388583 412159 487097 567929 578721 711911 725439 903617 986403 1143857 1165749 1236477 1320671 1461291 1560793 1703787 2135733 2660299 2710851 3431571 3962013 4274413 4682379 5358067 6247219 7383077 7831021 7980897 9254843 12823239 16074201 17168723 18741657 22149231 23493063 27764529 29263289 34583887 50545681 51506169 81213847 87789867 101803273 103751661 151637043 243641541 305409819 380422757 556002491 657093853 1141268271 1668007473 1971281559 7228032383 21684097149
• Sum of all divisors σ(n): 36752486400
• Sum of proper divisors (its aliquot sum) s(n): 15068389251
• 21684097149 is a deficient number, because the sum of its proper divisors (15068389251) is less than itself. Its deficiency is 6615707898

Bases of 21684097149

• Binary: 10100001100011110010001000001111101₂
• Hexadecimal: 0x50C79107D
• Base-36: 9YM5GFX

Squares and roots of 21684097149

• 21684097149 squared (21684097149²) is 470200069167269928201
• 21684097149 cubed (21684097149³) is 10195863979289600654216738798949
• The square root of 21684097149 is 147255.2109400547
• The cube root of 21684097149 is 2788.5629195515

Scales and comparisons

• 21,684,097,149 seconds is equal to 689 years, 25 weeks, 2 days, 8 hours, 19 minutes, 9 seconds.
• To count from 1 to 21,684,097,149 would take you about one thousand, three hundred seventy-eight 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 21684097149 cubic inches would be around 232.4 feet tall.

Recreational maths with 21684097149

• 21684097149 backwards is 94179048612
• The number of decimal digits it has is: 11
• The sum of 21684097149's digits is 51
• More coming soon!