20721989184
20,721,989,184 is an even composite number composed of six prime numbers multiplied together.
20721989184 is an even composite number. It is composed of six distinct prime numbers multiplied together. It has a total of three hundred thirty-six divisors.
Prime factorization of 20721989184:
26 × 3 × 13 × 312 × 53 × 163
(2 × 2 × 2 × 2 × 2 × 2 × 3 × 13 × 31 × 31 × 53 × 163)See below for interesting mathematical facts about the number 20721989184 from the Numbermatics database.
Names of 20721989184
- Cardinal: 20721989184 can be written as Twenty billion, seven hundred twenty-one million, nine hundred eighty-nine thousand, one hundred eighty-four.
Scientific notation
- Scientific notation: 2.0721989184 × 1010
Factors of 20721989184
Divisors of 20721989184
- Number of divisors d(n): 336
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Complete list of divisors:
1 2 3 4 6 8 12 13 16 24 26 31 32 39 48 52 53 62 64 78 93 96 104 106 124 156 159 163 186 192 208 212 248 312 318 326 372 403 416 424 489 496 624 636 652 689 744 806 832 848 961 978 992 1209 1248 1272 1304 1378 1488 1612 1643 1696 1922 1956 1984 2067 2119 2418 2496 2544 2608 2756 2883 2976 3224 3286 3392 3844 3912 4134 4238 4836 4929 5053 5088 5216 5512 5766 5952 6357 6448 6572 7688 7824 8268 8476 8639 9672 9858 10106 10176 10432 11024 11532 12493 12714 12896 13144 15159 15376 15648 16536 16952 17278 19344 19716 20212 21359 22048 23064 24986 25428 25792 25917 26288 30318 30752 31296 33072 33904 34556 37479 38688 39432 40424 42718 44096 46128 49972 50856 50933 51834 52576 60636 61504 64077 65689 66144 67808 69112 74958 77376 78864 80848 85436 92256 99944 101712 101866 103668 105152 112307 121272 128154 131378 132288 135616 138224 149916 152799 156643 157728 161696 170872 184512 197067 199888 203424 203732 207336 224614 242544 256308 262756 267809 276448 299832 305598 313286 315456 323392 336921 341744 394134 399776 406848 407464 414672 449228 469929 485088 512616 525512 535618 552896 599664 611196 626572 662129 673842 683488 788268 799552 803427 814928 829344 898456 939858 970176 1025232 1051024 1071236 1199328 1222392 1253144 1324258 1347684 1366976 1576536 1606854 1629856 1658688 1796912 1879716 1986387 2036359 2050464 2102048 2142472 2398656 2444784 2506288 2648516 2695368 3153072 3213708 3259712 3481517 3593824 3759432 3972774 4072718 4100928 4204096 4284944 4889568 5012576 5297032 5390736 6109077 6306144 6427416 6963034 7187648 7518864 7945548 8145436 8302079 8569888 9779136 10025152 10444551 10594064 10781472 12218154 12612288 12854832 13926068 15037728 15891096 16290872 16604158 17139776 20889102 21188128 21562944 24436308 24906237 25709664 27852136 30075456 31782192 32581744 33208316 41778204 42376256 48872616 49812474 51419328 55704272 63564384 65163488 66416632 83556408 97745232 99624948 107927027 111408544 127128768 130326976 132833264 167112816 195490464 199249896 215854054 222817088 265666528 323781081 334225632 390980928 398499792 431708108 531333056 647562162 668451264 796999584 863416216 1295124324 1593999168 1726832432 2590248648 3453664864 5180497296 6907329728 10360994592 20721989184
- Sum of all divisors σ(n): 62542984896
- Sum of proper divisors (its aliquot sum) s(n): 41820995712
- 20721989184 is an abundant number, because the sum of its proper divisors (41820995712) is greater than itself. Its abundance is 21099006528
Bases of 20721989184
- Binary: 100110100110010000001110110010000002
- Hexadecimal: 0x4D3207640
- Base-36: 9IPC56O
Squares and roots of 20721989184
- 20721989184 squared (207219891842) is 429400835741812985856
- 20721989184 cubed (207219891843) is 8898039473842409309458776981504
-
The
square root of 20721989184 is 143951.3431128727 -
The
cube root of 20721989184 is 2746.6952780297
Scales and comparisons
How big is 20721989184?- 20,721,989,184 seconds is equal to 658 years, 46 weeks, 3 days, 20 hours, 6 minutes, 24 seconds.
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To count from 1 to 20,721,989,184 would take you about one thousand, three hundred seventeen 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 20721989184 cubic inches would be around 228.9 feet tall.
Recreational maths with 20721989184
- 20721989184 backwards is 48198912702
- The number of decimal digits it has is: 11
- The sum of 20721989184's digits is 51
- More coming soon!
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