21207433728
21,207,433,728 is an even composite number composed of six prime numbers multiplied together.
21207433728 is an even composite number. It is composed of six distinct prime numbers multiplied together. It has a total of three hundred twenty divisors.
Prime factorization of 21207433728:
29 × 3 × 13 × 23 × 61 × 757
(2 × 2 × 2 × 2 × 2 × 2 × 2 × 2 × 2 × 3 × 13 × 23 × 61 × 757)See below for interesting mathematical facts about the number 21207433728 from the Numbermatics database.
Names of 21207433728
- Cardinal: 21207433728 can be written as Twenty-one billion, two hundred seven million, four hundred thirty-three thousand, seven hundred twenty-eight.
Scientific notation
- Scientific notation: 2.1207433728 × 1010
Factors of 21207433728
Divisors of 21207433728
- Number of divisors d(n): 320
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Complete list of divisors:
1 2 3 4 6 8 12 13 16 23 24 26 32 39 46 48 52 61 64 69 78 92 96 104 122 128 138 156 183 184 192 208 244 256 276 299 312 366 368 384 416 488 512 552 598 624 732 736 757 768 793 832 897 976 1104 1196 1248 1403 1464 1472 1514 1536 1586 1664 1794 1952 2208 2271 2379 2392 2496 2806 2928 2944 3028 3172 3328 3588 3904 4209 4416 4542 4758 4784 4992 5612 5856 5888 6056 6344 6656 7176 7808 8418 8832 9084 9516 9568 9841 9984 11224 11712 11776 12112 12688 14352 15616 16836 17411 17664 18168 18239 19032 19136 19682 19968 22448 23424 24224 25376 28704 29523 31232 33672 34822 35328 36336 36478 38064 38272 39364 44896 46177 46848 48448 50752 52233 54717 57408 59046 67344 69644 72672 72956 76128 76544 78728 89792 92354 93696 96896 101504 104466 109434 114816 118092 134688 138531 139288 145344 145912 152256 153088 157456 179584 184708 193792 203008 208932 218868 226343 229632 236184 269376 277062 278576 290688 291824 304512 314912 359168 369416 387584 406016 417864 437736 452686 459264 472368 538752 554124 557152 581376 583648 600301 609024 629824 679029 718336 738832 835728 875472 905372 944736 1062071 1077504 1108248 1114304 1162752 1167296 1200602 1218048 1259648 1358058 1477664 1671456 1750944 1800903 1810744 1889472 2124142 2155008 2216496 2228608 2334592 2401204 2519296 2716116 2955328 3186213 3342912 3501888 3601806 3621488 3778944 4248284 4432992 4457216 4669184 4802408 5038592 5432232 5910656 6372426 6685824 7003776 7203612 7242976 7557888 8496568 8865984 8914432 9338368 9604816 10864464 11821312 12744852 13371648 13806923 14007552 14407224 14485952 15115776 16993136 17731968 19209632 21728928 23642624 25489704 26743296 27613846 28015104 28814448 28971904 33986272 35463936 38419264 41420769 43457856 50979408 55227692 57628896 57943808 67972544 70927872 76838528 82841538 86915712 101958816 110455384 115257792 115887616 135945088 153677056 165683076 173831424 203917632 220910768 230515584 271890176 307354112 331366152 347662848 407835264 441821536 461031168 543780352 662732304 815670528 883643072 922062336 1325464608 1631341056 1767286144 2650929216 3534572288 5301858432 7069144576 10603716864 21207433728
- Sum of all divisors σ(n): 64615364352
- Sum of proper divisors (its aliquot sum) s(n): 43407930624
- 21207433728 is an abundant number, because the sum of its proper divisors (43407930624) is greater than itself. Its abundance is 22200496896
Bases of 21207433728
- Binary: 100111100000000111111000010000000002
- Hexadecimal: 0x4F00FC200
- Base-36: 9QQCWLC
Squares and roots of 21207433728
- 21207433728 squared (212074337282) is 449755245327511977984
- 21207433728 cubed (212074337283) is 9538154559103591928221875044352
-
The
square root of 21207433728 is 145627.7230749695 -
The
cube root of 21207433728 is 2767.9784599659
Scales and comparisons
How big is 21207433728?- 21,207,433,728 seconds is equal to 674 years, 17 weeks, 1 day, 9 hours, 48 minutes, 48 seconds.
-
To count from 1 to 21,207,433,728 would take you about one thousand, three hundred forty-eight 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 21207433728 cubic inches would be around 230.7 feet tall.
Recreational maths with 21207433728
- 21207433728 backwards is 82733470212
- 21207433728 is a
Harshad number . - The number of decimal digits it has is: 11
- The sum of 21207433728's digits is 39
- More coming soon!
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