21489909760
21,489,909,760 is an even composite number composed of four prime numbers multiplied together.
21489909760 is an even composite number. It is composed of four distinct prime numbers multiplied together. It has a total of two hundred sixteen divisors.
Prime factorization of 21489909760:
217 × 5 × 112 × 271
(2 × 2 × 2 × 2 × 2 × 2 × 2 × 2 × 2 × 2 × 2 × 2 × 2 × 2 × 2 × 2 × 2 × 5 × 11 × 11 × 271)See below for interesting mathematical facts about the number 21489909760 from the Numbermatics database.
Names of 21489909760
- Cardinal: 21489909760 can be written as Twenty-one billion, four hundred eighty-nine million, nine hundred nine thousand, seven hundred sixty.
Scientific notation
- Scientific notation: 2.148990976 × 1010
Factors of 21489909760
Divisors of 21489909760
- Number of divisors d(n): 216
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Complete list of divisors:
1 2 4 5 8 10 11 16 20 22 32 40 44 55 64 80 88 110 121 128 160 176 220 242 256 271 320 352 440 484 512 542 605 640 704 880 968 1024 1084 1210 1280 1355 1408 1760 1936 2048 2168 2420 2560 2710 2816 2981 3520 3872 4096 4336 4840 5120 5420 5632 5962 7040 7744 8192 8672 9680 10240 10840 11264 11924 14080 14905 15488 16384 17344 19360 20480 21680 22528 23848 28160 29810 30976 32768 32791 34688 38720 40960 43360 45056 47696 56320 59620 61952 65536 65582 69376 77440 81920 86720 90112 95392 112640 119240 123904 131072 131164 138752 154880 163840 163955 173440 180224 190784 225280 238480 247808 262328 277504 309760 327680 327910 346880 360448 381568 450560 476960 495616 524656 555008 619520 655360 655820 693760 720896 763136 901120 953920 991232 1049312 1110016 1239040 1311640 1387520 1441792 1526272 1802240 1907840 1982464 2098624 2220032 2478080 2623280 2775040 3052544 3604480 3815680 3964928 4197248 4440064 4956160 5246560 5550080 6105088 7208960 7631360 7929856 8394496 8880128 9912320 10493120 11100160 12210176 15262720 15859712 16788992 17760256 19824640 20986240 22200320 24420352 30525440 33577984 35520512 39649280 41972480 44400640 48840704 61050880 67155968 79298560 83944960 88801280 97681408 122101760 134311936 167889920 177602560 195362816 244203520 268623872 335779840 390725632 488407040 537247744 671559680 976814080 1074495488 1343119360 1953628160 2148990976 2686238720 4297981952 5372477440 10744954880 21489909760
- Sum of all divisors σ(n): 56899711008
- Sum of proper divisors (its aliquot sum) s(n): 35409801248
- 21489909760 is an abundant number, because the sum of its proper divisors (35409801248) is greater than itself. Its abundance is 13919891488
Bases of 21489909760
- Binary: 101000000001110011000000000000000002
- Hexadecimal: 0x500E60000
- Base-36: 9VEJCHS
Squares and roots of 21489909760
- 21489909760 squared (214899097602) is 461816221492943257600
- 21489909760 cubed (214899097603) is 9924388925587523082624434176000
-
The
square root of 21489909760 is 146594.3715154167 -
The
cube root of 21489909760 is 2780.2138165169
Scales and comparisons
How big is 21489909760?- 21,489,909,760 seconds is equal to 683 years, 16 weeks, 1 day, 19 hours, 22 minutes, 40 seconds.
-
To count from 1 to 21,489,909,760 would take you about one thousand, three hundred sixty-six 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 21489909760 cubic inches would be around 231.7 feet tall.
Recreational maths with 21489909760
- 21489909760 backwards is 06790998412
- 21489909760 is a
Harshad number . - The number of decimal digits it has is: 11
- The sum of 21489909760's digits is 55
- More coming soon!
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