21373558440

Names of 21373558440

• Cardinal: 21373558440 can be written as Twenty-one billion, three hundred seventy-three million, five hundred fifty-eight thousand, four hundred forty.

Scientific notation

• Scientific notation: 2.137355844 × 10¹⁰

Factors of 21373558440

• Number of distinct prime factors ω(n): 5
• Total number of prime factors Ω(n): 9
• Sum of prime factors: 81094

Divisors of 21373558440

• Number of divisors d(n): 128
• Complete list of divisors:
  1 2 3 4 5 6 8 10 12 13 15 20 24 26 30 39 40 52 60 65 78 104 120 130 156 169 195 260 312 338 390 507 520 676 780 845 1014 1352 1560 1690 2028 2197 2535 3380 4056 4394 5070 6591 6760 8788 10140 10985 13182 17576 20280 21970 26364 32955 43940 52728 65910 81071 87880 131820 162142 243213 263640 324284 405355 486426 648568 810710 972852 1053923 1216065 1621420 1945704 2107846 2432130 3161769 3242840 4215692 4864260 5269615 6323538 8431384 9728520 10539230 12647076 13700999 15808845 21078460 25294152 27401998 31617690 41102997 42156920 54803996 63235380 68504995 82205994 109607992 126470760 137009990 164411988 178112987 205514985 274019980 328823976 356225974 411029970 534338961 548039960 712451948 822059940 890564935 1068677922 1424903896 1644119880 1781129870 2137355844 2671694805 3562259740 4274711688 5343389610 7124519480 10686779220 21373558440
• Sum of all divisors σ(n): 69462489600
• Sum of proper divisors (its aliquot sum) s(n): 48088931160
• 21373558440 is an abundant number, because the sum of its proper divisors (48088931160) is greater than itself. Its abundance is 26715372720

Bases of 21373558440

• Binary: 10011111001111101101001111010101000₂
• Hexadecimal: 0x4F9F69EA8
• Base-36: 9TH9J8O

Squares and roots of 21373558440

• 21373558440 squared (21373558440²) is 456829000388095233600
• 21373558440 cubed (21373558440³) is 9764061336881736155635051584000
• The square root of 21373558440 is 146196.9850578321
• The cube root of 21373558440 is 2775.1871611449

Scales and comparisons

• 21,373,558,440 seconds is equal to 679 years, 31 weeks, 6 days, 3 hours, 34 minutes.
• To count from 1 to 21,373,558,440 would take you about one thousand, three hundred fifty-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 21373558440 cubic inches would be around 231.3 feet tall.

Recreational maths with 21373558440

• 21373558440 backwards is 04485537312
• The number of decimal digits it has is: 11
• The sum of 21373558440's digits is 42
• More coming soon!