21445323880

Names of 21445323880

• Cardinal: 21445323880 can be written as Twenty-one billion, four hundred forty-five million, three hundred twenty-three thousand, eight hundred eighty.

Scientific notation

• Scientific notation: 2.144532388 × 10¹⁰

Factors of 21445323880

• Number of distinct prime factors ω(n): 6
• Total number of prime factors Ω(n): 9
• Sum of prime factors: 395

Divisors of 21445323880

• Number of divisors d(n): 192
• Complete list of divisors:
  1 2 4 5 8 10 17 20 34 40 41 68 73 82 85 136 146 164 170 205 257 292 328 340 365 410 514 584 680 697 730 820 1028 1241 1285 1394 1460 1640 1681 2056 2482 2570 2788 2920 2993 3362 3485 4369 4964 5140 5576 5986 6205 6724 6970 8405 8738 9928 10280 10537 11972 12410 13448 13940 14965 16810 17476 18761 21074 21845 23944 24820 27880 28577 29930 33620 34952 37522 42148 43690 49640 50881 52685 57154 59860 67240 75044 84296 87380 93805 101762 105370 114308 119720 122713 142885 150088 174760 179129 187610 203524 210740 228616 245426 254405 285770 318937 358258 375220 407048 421480 432017 490852 508810 571540 613565 637874 716516 750440 769201 864034 895645 981704 1017620 1143080 1227130 1275748 1433032 1538402 1594685 1728068 1791290 2035240 2086121 2160085 2454260 2551496 3076804 3189370 3456136 3582580 3846005 4172242 4320170 4908520 6153608 6378740 7165160 7344289 7692010 8344484 8640340 10430605 12757480 13076417 14688578 15384020 16688968 17280680 20861210 26152834 29377156 30768040 31537241 36721445 41722420 52305668 58754312 63074482 65382085 73442890 83444840 104611336 126148964 130764170 146885780 157686205 252297928 261528340 293771560 315372410 523056680 536133097 630744820 1072266194 1261489640 2144532388 2680665485 4289064776 5361330970 10722661940 21445323880
• Sum of all divisors σ(n): 53290735920
• Sum of proper divisors (its aliquot sum) s(n): 31845412040
• 21445323880 is an abundant number, because the sum of its proper divisors (31845412040) is greater than itself. Its abundance is 10400088160

Bases of 21445323880

• Binary: 10011111110001111011010110001101000₂
• Hexadecimal: 0x4FE3DAC68
• Base-36: 9UNZPT4

Squares and roots of 21445323880

• 21445323880 squared (21445323880²) is 459901916318098254400
• 21445323880 cubed (21445323880³) is 9862745548474274171270635072000
• The square root of 21445323880 is 146442.2202781697
• The cube root of 21445323880 is 2778.2897491009

Scales and comparisons

• 21,445,323,880 seconds is equal to 681 years, 46 weeks, 3 days, 18 hours, 24 minutes, 40 seconds.
• To count from 1 to 21,445,323,880 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 21445323880 cubic inches would be around 231.5 feet tall.

Recreational maths with 21445323880

• 21445323880 backwards is 08832354412
• 21445323880 is a Harshad number.
• The number of decimal digits it has is: 11
• The sum of 21445323880's digits is 40
• More coming soon!