21447462140

Names of 21447462140

• Cardinal: 21447462140 can be written as Twenty-one billion, four hundred forty-seven million, four hundred sixty-two thousand, one hundred forty.

Scientific notation

• Scientific notation: 2.144746214 × 10¹⁰

Factors of 21447462140

• Number of distinct prime factors ω(n): 7
• Total number of prime factors Ω(n): 9
• Sum of prime factors: 338

Divisors of 21447462140

• Number of divisors d(n): 288
• Complete list of divisors:
  1 2 4 5 10 13 17 20 26 29 34 52 58 61 65 68 85 116 122 130 145 169 170 211 221 244 260 290 305 338 340 377 422 442 493 580 610 676 754 793 844 845 884 986 1037 1055 1105 1220 1508 1586 1690 1769 1885 1972 2074 2110 2210 2465 2743 2873 3172 3380 3538 3587 3770 3965 4148 4220 4420 4901 4930 5185 5486 5746 6119 6409 7076 7174 7540 7930 8845 9802 9860 10309 10370 10972 11492 12238 12818 12871 13481 13715 14348 14365 15860 17690 17935 19604 20618 20740 22997 24476 24505 25636 25742 26962 27430 28730 30073 30595 32045 35380 35659 35870 41236 45994 46631 49010 51484 51545 53924 54860 57460 60146 61190 64090 64355 67405 71318 71740 79547 83317 91988 93262 98020 103090 104023 114985 120292 122380 128180 128710 134810 142636 150365 159094 166634 167323 175253 178295 186524 206180 208046 218807 229970 233155 257420 269620 298961 300730 318188 333268 334646 350506 356590 373259 390949 397735 416092 416585 437614 459940 466310 520115 597922 601460 606203 669292 701012 713180 746518 781898 795470 833170 836615 875228 876265 932620 1034111 1040230 1094035 1195844 1212406 1352299 1493036 1494805 1563796 1590940 1666340 1673230 1752530 1866295 1954745 2068222 2080460 2175199 2188070 2424812 2704598 2844491 2989610 3031015 3346460 3505060 3732590 3909490 4136444 4350398 4376140 4852367 5082337 5170555 5409196 5688982 5979220 6062030 6345403 6761495 7465180 7818980 8700796 9704734 10164674 10341110 10875995 11377964 12124060 12690806 13522990 14222455 17579887 19409468 20329348 20682220 21751990 24261835 25381612 25411685 27045980 28444910 31727015 35159774 36978383 43503980 48523670 50823370 56889820 63080771 63454030 70319548 73956766 82490239 87899435 97047340 101646740 126161542 126908060 147913532 164980478 175798870 184891915 252323084 315403855 329960956 351597740 369783830 412451195 630807710 739567660 824902390 1072373107 1261615420 1649804780 2144746214 4289492428 5361865535 10723731070 21447462140
• Sum of all divisors σ(n): 54553383360
• Sum of proper divisors (its aliquot sum) s(n): 33105921220
• 21447462140 is an abundant number, because the sum of its proper divisors (33105921220) is greater than itself. Its abundance is 11658459080

Bases of 21447462140

• Binary: 10011111110010111100100110011111100₂
• Hexadecimal: 0x4FE5E4CFC
• Base-36: 9UP9JP8

Squares and roots of 21447462140

• 21447462140 squared (21447462140²) is 459993632246733379600
• 21447462140 cubed (21447462140³) is 9865696012252897297645248344000
• The square root of 21447462140 is 146449.5207912951
• The cube root of 21447462140 is 2778.3820848229

Scales and comparisons

• 21,447,462,140 seconds is equal to 681 years, 50 weeks, 12 hours, 22 minutes, 20 seconds.
• To count from 1 to 21,447,462,140 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 21447462140 cubic inches would be around 231.5 feet tall.

Recreational maths with 21447462140

• 21447462140 backwards is 04126474412
• The number of decimal digits it has is: 11
• The sum of 21447462140's digits is 35
• More coming soon!