21025718272

Names of 21025718272

• Cardinal: 21025718272 can be written as Twenty-one billion, twenty-five million, seven hundred eighteen thousand, two hundred seventy-two.

Scientific notation

• Scientific notation: 2.1025718272 × 10¹⁰

Factors of 21025718272

• Number of distinct prime factors ω(n): 5
• Total number of prime factors Ω(n): 20
• Sum of prime factors: 104

Divisors of 21025718272

• Number of divisors d(n): 272
• Complete list of divisors:
  1 2 4 8 13 16 23 26 29 32 37 46 52 58 64 74 92 104 116 128 148 184 208 232 256 296 299 368 377 416 464 481 512 592 598 667 736 754 832 851 928 962 1024 1073 1184 1196 1334 1472 1508 1664 1702 1856 1924 2048 2146 2368 2392 2668 2944 3016 3328 3404 3712 3848 4096 4292 4736 4784 5336 5888 6032 6656 6808 7424 7696 8192 8584 8671 9472 9568 10672 11063 11776 12064 13312 13616 13949 14848 15392 16384 17168 17342 18944 19136 21344 22126 23552 24128 24679 26624 27232 27898 29696 30784 32768 34336 34684 37888 38272 42688 44252 47104 48256 49358 53248 54464 55796 59392 61568 65536 68672 69368 75776 76544 85376 88504 94208 96512 98716 106496 108928 111592 118784 123136 137344 138736 151552 153088 170752 177008 188416 193024 197432 212992 217856 223184 237568 246272 274688 277472 303104 306176 320827 341504 354016 376832 386048 394864 425984 435712 446368 475136 492544 549376 554944 606208 612352 641654 683008 708032 753664 772096 789728 851968 871424 892736 950272 985088 1098752 1109888 1212416 1224704 1283308 1366016 1416064 1507328 1544192 1579456 1742848 1785472 1900544 1970176 2197504 2219776 2424832 2449408 2566616 2732032 2832128 3088384 3158912 3485696 3570944 3940352 4395008 4439552 4898816 5133232 5464064 5664256 6176768 6317824 6971392 7141888 7880704 8790016 8879104 9797632 10266464 10928128 11328512 12353536 12635648 13942784 14283776 15761408 17580032 17758208 19595264 20532928 21856256 22657024 24707072 25271296 27885568 28567552 31522816 35160064 35516416 41065856 43712512 45314048 50542592 55771136 57135104 70320128 71032832 82131712 90628096 101085184 114270208 142065664 164263424 181256192 202170368 228540416 284131328 328526848 362512384 404340736 457080832 568262656 657053696 725024768 808681472 914161664 1314107392 1617362944 2628214784 5256429568 10512859136 21025718272
• Sum of all divisors σ(n): 50205435840
• Sum of proper divisors (its aliquot sum) s(n): 29179717568
• 21025718272 is an abundant number, because the sum of its proper divisors (29179717568) is greater than itself. Its abundance is 8153999296

Bases of 21025718272

• Binary: 10011100101001110110000000000000000₂
• Hexadecimal: 0x4E53B0000
• Base-36: 9NQ641S

Squares and roots of 21025718272

• 21025718272 squared (21025718272²) is 442080828853514665984
• 21025718272 cubed (21025718272³) is 9295066960926248123999765659648
• The square root of 21025718272 is 145002.4767788467
• The cube root of 21025718272 is 2760.0499829917

Scales and comparisons

• 21,025,718,272 seconds is equal to 668 years, 28 weeks, 5 days, 5 hours, 17 minutes, 52 seconds.
• To count from 1 to 21,025,718,272 would take you about one thousand, three hundred thirty-seven 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 21025718272 cubic inches would be around 230 feet tall.

Recreational maths with 21025718272

• 21025718272 backwards is 27281752012
• 21025718272 is a Harshad number.
• The number of decimal digits it has is: 11
• The sum of 21025718272's digits is 37
• More coming soon!