21998478312
21,998,478,312 is an even composite number composed of six prime numbers multiplied together.
21998478312 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 21998478312:
23 × 34 × 17 × 19 × 61 × 1723
(2 × 2 × 2 × 3 × 3 × 3 × 3 × 17 × 19 × 61 × 1723)See below for interesting mathematical facts about the number 21998478312 from the Numbermatics database.
Names of 21998478312
- Cardinal: 21998478312 can be written as Twenty-one billion, nine hundred ninety-eight million, four hundred seventy-eight thousand, three hundred twelve.
Scientific notation
- Scientific notation: 2.1998478312 × 1010
Factors of 21998478312
Divisors of 21998478312
- Number of divisors d(n): 320
-
Complete list of divisors:
1 2 3 4 6 8 9 12 17 18 19 24 27 34 36 38 51 54 57 61 68 72 76 81 102 108 114 122 136 152 153 162 171 183 204 216 228 244 306 323 324 342 366 408 456 459 488 513 549 612 646 648 684 732 918 969 1026 1037 1098 1159 1224 1292 1368 1377 1464 1539 1647 1723 1836 1938 2052 2074 2196 2318 2584 2754 2907 3078 3111 3294 3446 3477 3672 3876 4104 4148 4392 4636 4941 5169 5508 5814 6156 6222 6588 6892 6954 7752 8296 8721 9272 9333 9882 10338 10431 11016 11628 12312 12444 13176 13784 13908 15507 17442 18666 19703 19764 20676 20862 23256 24888 26163 27816 27999 29291 31014 31293 32737 34884 37332 39406 39528 41352 41724 46521 52326 55998 58582 59109 62028 62586 65474 69768 74664 78812 83448 83997 87873 93042 93879 98211 104652 105103 111996 117164 118218 124056 125172 130948 139563 157624 167994 175746 177327 186084 187758 196422 209304 210206 223992 234328 236436 250344 261896 263619 279126 294633 315309 335988 351492 354654 372168 375516 392844 420412 472872 527238 531981 556529 558252 589266 630618 671976 702984 709308 751032 785688 790857 840824 883899 945927 1054476 1063962 1113058 1116504 1178532 1261236 1418616 1581714 1595943 1669587 1767798 1786751 1891854 1996957 2108952 2127924 2226116 2357064 2372571 2522472 2651697 2837781 3163428 3191886 3339174 3535596 3573502 3783708 3993914 4255848 4452232 4745142 5008761 5303394 5360253 5675562 5990871 6326856 6383772 6678348 7071192 7147004 7567416 7987828 8513343 9490284 10017522 10606788 10720506 11351124 11981742 12767544 13356696 14294008 15026283 15975656 16080759 17026686 17972613 18980568 20035044 21213576 21441012 22702248 23963484 30052566 32161518 33948269 34053372 35945226 40070088 42882024 45078849 47926968 48242277 53917839 60105132 64323036 67896538 68106744 71890452 90157698 96484554 101844807 107835678 120210264 128646072 135793076 143780904 144726831 161753517 180315396 192969108 203689614 215671356 271586152 289453662 305534421 323507034 360630792 385938216 407379228 431342712 578907324 611068842 647014068 814758456 916603263 1157814648 1222137684 1294028136 1833206526 2444275368 2749809789 3666413052 5499619578 7332826104 10999239156 21998478312
- Sum of all divisors σ(n): 69840619200
- Sum of proper divisors (its aliquot sum) s(n): 47842140888
- 21998478312 is an abundant number, because the sum of its proper divisors (47842140888) is greater than itself. Its abundance is 25843662576
Bases of 21998478312
- Binary: 101000111110011011000100011111010002
- Hexadecimal: 0x51F3623E8
- Base-36: A3TBQI0
Squares and roots of 21998478312
- 21998478312 squared (219984783122) is 483933048043534369344
- 21998478312 cubed (219984783123) is 10645790661845744855840581667328
-
The
square root of 21998478312 is 148318.8400440079 -
The
cube root of 21998478312 is 2801.9747256867
Scales and comparisons
How big is 21998478312?- 21,998,478,312 seconds is equal to 699 years, 25 weeks, 1 day, 25 minutes, 12 seconds.
-
To count from 1 to 21,998,478,312 would take you about one thousand, three hundred ninety-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 21998478312 cubic inches would be around 233.5 feet tall.
Recreational maths with 21998478312
- 21998478312 backwards is 21387489912
- 21998478312 is a
Harshad number . - The number of decimal digits it has is: 11
- The sum of 21998478312's digits is 54
- More coming soon!
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