21256521120

Names of 21256521120

• Cardinal: 21256521120 can be written as Twenty-one billion, two hundred fifty-six million, five hundred twenty-one thousand, one hundred twenty.

Scientific notation

• Scientific notation: 2.125652112 × 10¹⁰

Factors of 21256521120

• Number of distinct prime factors ω(n): 5
• Total number of prime factors Ω(n): 11
• Sum of prime factors: 37702

Divisors of 21256521120

• Number of divisors d(n): 192
• Complete list of divisors:
  1 2 3 4 5 6 8 9 10 12 15 16 18 20 24 27 30 32 36 40 45 48 54 60 72 80 90 96 108 120 131 135 144 160 180 216 240 262 270 288 360 393 432 480 524 540 655 720 786 864 1048 1080 1179 1310 1440 1572 1965 2096 2160 2358 2620 3144 3537 3930 4192 4320 4716 5240 5895 6288 7074 7860 9432 10480 11790 12576 14148 15720 17685 18864 20960 23580 28296 31440 35370 37561 37728 47160 56592 62880 70740 75122 94320 112683 113184 141480 150244 187805 188640 225366 282960 300488 338049 375610 450732 563415 565920 600976 676098 751220 901464 1014147 1126830 1201952 1352196 1502440 1690245 1802928 2028294 2253660 2704392 3004880 3380490 3605856 4056588 4507320 4920491 5070735 5408784 6009760 6760980 8113176 9014640 9840982 10141470 10817568 13521960 14761473 16226352 18029280 19681964 20282940 24602455 27043920 29522946 32452704 39363928 40565880 44284419 49204910 54087840 59045892 73807365 78727856 81131760 88568838 98409820 118091784 132853257 147614730 157455712 162263520 177137676 196819640 221422095 236183568 265706514 295229460 354275352 393639280 442844190 472367136 531413028 590458920 664266285 708550704 787278560 885688380 1062826056 1180917840 1328532570 1417101408 1771376760 2125652112 2361835680 2657065140 3542753520 4251304224 5314130280 7085507040 10628260560 21256521120
• Sum of all divisors σ(n): 74967742080
• Sum of proper divisors (its aliquot sum) s(n): 53711220960
• 21256521120 is an abundant number, because the sum of its proper divisors (53711220960) is greater than itself. Its abundance is 32454699840

Bases of 21256521120

• Binary: 10011110010111111001100010110100000₂
• Hexadecimal: 0x4F2FCC5A0
• Base-36: 9RJL0O0

Squares and roots of 21256521120

• 21256521120 squared (21256521120²) is 451839690125006054400
• 21256521120 cubed (21256521120³) is 9604539915996446635481468928000
• The square root of 21256521120 is 145796.1629124717
• The cube root of 21256521120 is 2770.1124309781

Scales and comparisons

• 21,256,521,120 seconds is equal to 675 years, 46 weeks, 2 days, 13 hours, 12 minutes.
• To count from 1 to 21,256,521,120 would take you about one thousand, three hundred fifty-one 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 21256521120 cubic inches would be around 230.8 feet tall.

Recreational maths with 21256521120

• 21256521120 backwards is 02112565212
• 21256521120 is a Harshad number.
• The number of decimal digits it has is: 11
• The sum of 21256521120's digits is 27
• More coming soon!