21542429437920

Names of 21542429437920

• Cardinal: 21542429437920 can be written as Twenty-one trillion, five hundred forty-two billion, four hundred twenty-nine million, four hundred thirty-seven thousand, nine hundred twenty.

Scientific notation

• Scientific notation: 2.154242943792 × 10¹³

Factors of 21542429437920

• Number of distinct prime factors ω(n): 5
• Total number of prime factors Ω(n): 11
• Sum of prime factors: 262456528

Divisors of 21542429437920

• Number of divisors d(n): 192
• Complete list of divisors:
  1 2 3 4 5 6 8 9 10 12 15 16 18 19 20 24 27 30 32 36 38 40 45 48 54 57 60 72 76 80 90 95 96 108 114 120 135 144 152 160 171 180 190 216 228 240 270 285 288 304 342 360 380 432 456 480 513 540 570 608 684 720 760 855 864 912 1026 1080 1140 1368 1440 1520 1710 1824 2052 2160 2280 2565 2736 3040 3420 4104 4320 4560 5130 5472 6840 8208 9120 10260 13680 16416 20520 27360 41040 82080 262456499 524912998 787369497 1049825996 1312282495 1574738994 2099651992 2362108491 2624564990 3149477988 3936847485 4199303984 4724216982 4986673481 5249129980 6298955976 7086325473 7873694970 8398607968 9448433964 9973346962 10498259960 11810542455 12597911952 14172650946 14960020443 15747389940 18896867928 19946693924 20996519920 23621084910 24933367405 25195823904 28345301892 29920040886 31494779880 35431627365 37793735856 39893387848 41993039840 44880061329 47242169820 49866734810 56690603784 59840081772 62989559760 70863254730 74800102215 75587471712 79786775696 89760122658 94484339640 99733469620 113381207568 119680163544 125979119520 134640183987 141726509460 149600204430 159573551392 179520245316 188968679280 199466939240 224400306645 226762415136 239360327088 269280367974 283453018920 299200408860 359040490632 377937358560 398933878480 448800613290 478720654176 538560735948 566906037840 598400817720 673200919935 718080981264 797867756960 897601226580 1077121471896 1133812075680 1196801635440 1346401839870 1436161962528 1795202453160 2154242943792 2393603270880 2692803679740 3590404906320 4308485887584 5385607359480 7180809812640 10771214718960 21542429437920
• Sum of all divisors σ(n): 79366845600000
• Sum of proper divisors (its aliquot sum) s(n): 57824416162080
• 21542429437920 is an abundant number, because the sum of its proper divisors (57824416162080) is greater than itself. Its abundance is 36281986724160

Bases of 21542429437920

• Binary: 100111001011110111100110110101010111111100000₂
• Hexadecimal: 0x1397BCDAAFE0
• Base-36: 7MWGEA0O0

Squares and roots of 21542429437920

• 21542429437920 squared (21542429437920²) is 464076266087762207133926400
• 21542429437920 cubed (21542429437920³) is 9997330216009003561218728711314649088000
• The square root of 21542429437920 is 4641382.2766413025
• The cube root of 21542429437920 is 27824.7684982737

Scales and comparisons

• 21,542,429,437,920 seconds is equal to 684,982 years, 32 weeks, 2 days, 1 hour, 12 minutes.
• To count from 1 to 21,542,429,437,920 would take you about one million, seven hundred twelve thousand, four hundred fifty-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 21542429437920 cubic inches would be around 2318.7 feet tall.

Recreational maths with 21542429437920

• 21542429437920 backwards is 02973492424512
• 21542429437920 is a Harshad number.
• The number of decimal digits it has is: 14
• The sum of 21542429437920's digits is 54
• More coming soon!