21834540

Names of 21834540

• Cardinal: 21834540 can be written as Twenty-one million, eight hundred thirty-four thousand, five hundred forty.

Scientific notation

• Scientific notation: 2.183454 × 10⁷

Factors of 21834540

• Number of distinct prime factors ω(n): 7
• Total number of prime factors Ω(n): 9
• Sum of prime factors: 104

Divisors of 21834540

• Number of divisors d(n): 288
• Complete list of divisors:
  1 2 3 4 5 6 7 9 10 12 13 14 15 18 20 21 26 28 30 31 35 36 39 42 43 45 52 60 62 63 65 70 78 84 86 90 91 93 105 117 124 126 129 130 140 155 156 172 180 182 186 195 210 215 217 234 252 258 260 273 279 301 310 315 364 372 387 390 403 420 430 434 455 465 468 516 546 558 559 585 602 620 630 645 651 774 780 806 819 860 868 903 910 930 1085 1092 1116 1118 1170 1204 1209 1260 1290 1302 1333 1365 1395 1505 1548 1612 1638 1677 1806 1820 1860 1935 1953 2015 2170 2236 2340 2418 2580 2604 2666 2709 2730 2790 2795 2821 3010 3255 3276 3354 3612 3627 3870 3906 3913 3999 4030 4095 4340 4515 4836 5031 5332 5418 5460 5580 5590 5642 6020 6045 6510 6665 6708 7254 7740 7812 7826 7998 8060 8190 8385 8463 9030 9331 9765 10062 10836 11180 11284 11739 11997 12090 13020 13330 13545 14105 14508 15652 15996 16380 16770 16926 17329 18060 18135 18662 19530 19565 19995 20124 23478 23994 24180 25155 25389 26660 27090 27993 28210 33540 33852 34658 35217 36270 37324 39060 39130 39990 42315 46655 46956 47988 50310 50778 51987 54180 55986 56420 58695 59985 69316 70434 72540 78260 79980 83979 84630 86645 93310 100620 101556 103974 111972 117390 119970 121303 126945 139965 140868 155961 167958 169260 173290 176085 186620 207948 234780 239940 242606 253890 259935 279930 311922 335916 346580 352170 363909 419895 485212 507780 519870 559860 606515 623844 704340 727818 779805 839790 1039740 1091727 1213030 1455636 1559610 1679580 1819545 2183454 2426060 3119220 3639090 4366908 5458635 7278180 10917270 21834540
• Sum of all divisors σ(n): 86102016
• Sum of proper divisors (its aliquot sum) s(n): 64267476
• 21834540 is an abundant number, because the sum of its proper divisors (64267476) is greater than itself. Its abundance is 42432936

Bases of 21834540

• Binary: 1010011010010101100101100₂
• Hexadecimal: 0x14D2B2C
• Base-36: CZZN0

Squares and roots of 21834540

• 21834540 squared (21834540²) is 476747137011600
• 21834540 cubed (21834540³) is 10409554432965260664000
• The square root of 21834540 is 4672.7443756319
• The cube root of 21834540 is 279.4997018483

Scales and comparisons

• 21,834,540 seconds is equal to 36 weeks, 17 hours, 9 minutes.
• To count from 1 to 21,834,540 would take you about two weeks!

  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 21834540 cubic inches would be around 23.3 feet tall.

Recreational maths with 21834540

• 21834540 backwards is 04543812
• The number of decimal digits it has is: 8
• The sum of 21834540's digits is 27
• More coming soon!