21390116472
21,390,116,472 is an even composite number composed of six prime numbers multiplied together.
21390116472 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 21390116472:
23 × 34 × 23 × 37 × 79 × 491
(2 × 2 × 2 × 3 × 3 × 3 × 3 × 23 × 37 × 79 × 491)See below for interesting mathematical facts about the number 21390116472 from the Numbermatics database.
Names of 21390116472
- Cardinal: 21390116472 can be written as Twenty-one billion, three hundred ninety million, one hundred sixteen thousand, four hundred seventy-two.
Scientific notation
- Scientific notation: 2.1390116472 × 1010
Factors of 21390116472
Divisors of 21390116472
- Number of divisors d(n): 320
-
Complete list of divisors:
1 2 3 4 6 8 9 12 18 23 24 27 36 37 46 54 69 72 74 79 81 92 108 111 138 148 158 162 184 207 216 222 237 276 296 316 324 333 414 444 474 491 552 621 632 648 666 711 828 851 888 948 982 999 1242 1332 1422 1473 1656 1702 1817 1863 1896 1964 1998 2133 2484 2553 2664 2844 2923 2946 2997 3404 3634 3726 3928 3996 4266 4419 4968 5106 5451 5688 5846 5892 5994 6399 6808 7268 7452 7659 7992 8532 8769 8838 10212 10902 11293 11692 11784 11988 12798 13257 14536 14904 15318 16353 17064 17538 17676 18167 20424 21804 22586 22977 23384 23976 25596 26307 26514 30636 32706 33879 35076 35352 36334 38789 39771 43608 45172 45954 49059 51192 52614 53028 54501 61272 65412 67229 67758 68931 70152 72668 77578 78921 79542 90344 91908 98118 101637 105228 106056 109002 116367 130824 134458 135516 137862 145336 147177 155156 157842 159084 163503 183816 196236 201687 203274 210456 218004 232734 236763 268916 271032 275724 294354 304911 310312 315684 318168 327006 349101 392472 403374 406548 417841 436008 465468 473526 490509 537832 551448 588708 605061 609822 631368 654012 698202 806748 813096 835682 892147 914733 930936 947052 981018 1047303 1177416 1210122 1219644 1253523 1308024 1396404 1435193 1471527 1613496 1671364 1784294 1815183 1829466 1894104 1962036 2094606 2420244 2439288 2507046 2676441 2792808 2870386 2943054 3141909 3342728 3568588 3630366 3658932 3760569 3924072 4189212 4305579 4840488 5014092 5352882 5445549 5740772 5886108 6283818 7137176 7260732 7317864 7521138 8029323 8378424 8611158 10028184 10705764 10891098 11281707 11481544 11772216 12567636 12916737 14521464 15042276 16058646 17222316 21411528 21782196 22563414 24087969 25135272 25833474 30084552 32117292 33009439 33845121 34444632 38750211 43564392 45126828 48175938 51666948 64234584 66018878 67690242 72263907 77500422 90253656 96351876 99028317 103333896 116250633 132037756 135380484 144527814 155000844 192703752 198056634 232501266 264075512 270760968 289055628 297084951 310001688 396113268 465002532 578111256 594169902 792226536 891254853 930005064 1188339804 1782509706 2376679608 2673764559 3565019412 5347529118 7130038824 10695058236 21390116472
- Sum of all divisors σ(n): 65151820800
- Sum of proper divisors (its aliquot sum) s(n): 43761704328
- 21390116472 is an abundant number, because the sum of its proper divisors (43761704328) is greater than itself. Its abundance is 22371587856
Bases of 21390116472
- Binary: 100111110101111001101000110011110002
- Hexadecimal: 0x4FAF34678
- Base-36: 9TR4FI0
Squares and roots of 21390116472
- 21390116472 squared (213901164722) is 457537082685725726784
- 21390116472 cubed (213901164723) is 9786771488906767867756609986048
-
The
square root of 21390116472 is 146253.6032786885 -
The
cube root of 21390116472 is 2775.9036192375
Scales and comparisons
How big is 21390116472?- 21,390,116,472 seconds is equal to 680 years, 7 weeks, 1 day, 19 hours, 1 minute, 12 seconds.
-
To count from 1 to 21,390,116,472 would take you about one thousand, three hundred sixty 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 21390116472 cubic inches would be around 231.3 feet tall.
Recreational maths with 21390116472
- 21390116472 backwards is 27461109312
- 21390116472 is a
Harshad number . - The number of decimal digits it has is: 11
- The sum of 21390116472's digits is 36
- More coming soon!
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