21225128112

Names of 21225128112

• Cardinal: 21225128112 can be written as Twenty-one billion, two hundred twenty-five million, one hundred twenty-eight thousand, one hundred twelve.

Scientific notation

• Scientific notation: 2.1225128112 × 10¹⁰

Factors of 21225128112

• Number of distinct prime factors ω(n): 5
• Total number of prime factors Ω(n): 10
• Sum of prime factors: 5076

Divisors of 21225128112

• Number of divisors d(n): 160
• Complete list of divisors:
  1 2 3 4 6 8 9 12 16 18 24 27 31 36 48 54 62 72 93 108 124 144 186 216 248 279 337 372 432 496 558 674 744 837 1011 1116 1348 1488 1674 2022 2232 2696 3033 3348 4044 4464 4703 5392 6066 6696 8088 9099 9406 10447 12132 13392 14109 16176 18198 18812 20894 24264 28218 31341 36396 37624 41788 42327 48528 56436 62682 72792 75248 83576 84654 94023 112872 125364 126981 145584 145793 167152 169308 188046 225744 250728 253962 282069 291586 338616 376092 437379 501456 507924 564138 583172 677232 752184 874758 1015848 1128276 1166344 1312137 1504368 1584911 1749516 2031696 2256552 2332688 2624274 3169822 3499032 3936411 4513104 4754733 5248548 6339644 6998064 7872822 9509466 10497096 12679288 14264199 15745644 19018932 20994192 25358576 28528398 31491288 38037864 42792597 49132241 57056796 62982576 76075728 85585194 98264482 114113592 147396723 171170388 196528964 228227184 294793446 342340776 393057928 442190169 589586892 684681552 786115856 884380338 1179173784 1326570507 1768760676 2358347568 2653141014 3537521352 5306282028 7075042704 10612564056 21225128112
• Sum of all divisors σ(n): 63089295360
• Sum of proper divisors (its aliquot sum) s(n): 41864167248
• 21225128112 is an abundant number, because the sum of its proper divisors (41864167248) is greater than itself. Its abundance is 20639039136

Bases of 21225128112

• Binary: 10011110001000111011100000010110000₂
• Hexadecimal: 0x4F11DC0B0
• Base-36: 9R0W5O0

Squares and roots of 21225128112

• 21225128112 squared (21225128112²) is 450506063370812684544
• 21225128112 cubed (21225128112³) is 9562048910278289791001042300928
• The square root of 21225128112 is 145688.4625219169
• The cube root of 21225128112 is 2768.7480652407

Scales and comparisons

• 21,225,128,112 seconds is equal to 674 years, 46 weeks, 3 days, 4 hours, 55 minutes, 12 seconds.
• To count from 1 to 21,225,128,112 would take you about one thousand, three hundred forty-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 21225128112 cubic inches would be around 230.7 feet tall.

Recreational maths with 21225128112

• 21225128112 backwards is 21182152212
• 21225128112 is a Harshad number.
• The number of decimal digits it has is: 11
• The sum of 21225128112's digits is 27
• More coming soon!