21439994880

Names of 21439994880

• Cardinal: 21439994880 can be written as Twenty-one billion, four hundred thirty-nine million, nine hundred ninety-four thousand, eight hundred eighty.

Scientific notation

• Scientific notation: 2.143999488 × 10¹⁰

Factors of 21439994880

• Number of distinct prime factors ω(n): 5
• Total number of prime factors Ω(n): 14
• Sum of prime factors: 19204

Divisors of 21439994880

• Number of divisors d(n): 176
• Complete list of divisors:
  1 2 3 4 5 6 8 10 12 15 16 20 24 30 32 40 48 60 64 73 80 96 120 128 146 160 192 219 240 256 292 320 365 384 438 480 512 584 640 730 768 876 960 1024 1095 1168 1280 1460 1536 1752 1920 2190 2336 2560 2920 3072 3504 3840 4380 4672 5120 5840 7008 7680 8760 9344 11680 14016 15360 17520 18688 19121 23360 28032 35040 37376 38242 46720 56064 57363 70080 74752 76484 93440 95605 112128 114726 140160 152968 186880 191210 224256 229452 280320 286815 305936 373760 382420 458904 560640 573630 611872 764840 917808 1121280 1147260 1223744 1395833 1529680 1835616 2294520 2447488 2791666 3059360 3671232 4187499 4589040 4894976 5583332 6118720 6979165 7342464 8374998 9178080 9789952 11166664 12237440 13958330 14684928 16749996 18356160 19579904 20937495 22333328 24474880 27916660 29369856 33499992 36712320 41874990 44666656 48949760 55833320 58739712 66999984 73424640 83749980 89333312 97899520 111666640 133999968 146849280 167499960 178666624 223333280 267999936 293698560 334999920 357333248 446666560 535999872 669999840 714666496 893333120 1071999744 1339999680 1429332992 1786666240 2143999488 2679999360 3573332480 4287998976 5359998720 7146664960 10719997440 21439994880
• Sum of all divisors σ(n): 69517495584
• Sum of proper divisors (its aliquot sum) s(n): 48077500704
• 21439994880 is an abundant number, because the sum of its proper divisors (48077500704) is greater than itself. Its abundance is 26637505824

Bases of 21439994880

• Binary: 10011111101111011000101110000000000₂
• Hexadecimal: 0x4FDEC5C00
• Base-36: 9UKTHXC

Squares and roots of 21439994880

• 21439994880 squared (21439994880²) is 459673380454426214400
• 21439994880 cubed (21439994880³) is 9855394923415190110073782272000
• The square root of 21439994880 is 146424.0242583163
• The cube root of 21439994880 is 2778.0596020739

Scales and comparisons

• 21,439,994,880 seconds is equal to 681 years, 37 weeks, 5 days, 2 hours, 8 minutes.
• To count from 1 to 21,439,994,880 would take you about one thousand, three hundred sixty-three 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 21439994880 cubic inches would be around 231.5 feet tall.

Recreational maths with 21439994880

• 21439994880 backwards is 08849993412
• The number of decimal digits it has is: 11
• The sum of 21439994880's digits is 57
• More coming soon!