18990642528
18,990,642,528 is an even composite number composed of six prime numbers multiplied together.
18990642528 is an even composite number. It is composed of six distinct prime numbers multiplied together. It has a total of two hundred eighty-eight divisors.
Prime factorization of 18990642528:
25 × 32 × 11 × 13 × 47 × 9811
(2 × 2 × 2 × 2 × 2 × 3 × 3 × 11 × 13 × 47 × 9811)See below for interesting mathematical facts about the number 18990642528 from the Numbermatics database.
Names of 18990642528
- Cardinal: 18990642528 can be written as Eighteen billion, nine hundred ninety million, six hundred forty-two thousand, five hundred twenty-eight.
Scientific notation
- Scientific notation: 1.8990642528 × 1010
Factors of 18990642528
Divisors of 18990642528
- Number of divisors d(n): 288
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Complete list of divisors:
1 2 3 4 6 8 9 11 12 13 16 18 22 24 26 32 33 36 39 44 47 48 52 66 72 78 88 94 96 99 104 117 132 141 143 144 156 176 188 198 208 234 264 282 286 288 312 352 376 396 416 423 429 468 517 528 564 572 611 624 752 792 846 858 936 1034 1056 1128 1144 1222 1248 1287 1504 1551 1584 1692 1716 1833 1872 2068 2256 2288 2444 2574 3102 3168 3384 3432 3666 3744 4136 4512 4576 4653 4888 5148 5499 6204 6721 6768 6864 7332 8272 9306 9776 9811 10296 10998 12408 13442 13536 13728 14664 16544 18612 19552 19622 20163 20592 21996 24816 26884 29328 29433 37224 39244 40326 41184 43992 49632 53768 58656 58866 60489 74448 78488 80652 87984 88299 107536 107921 117732 120978 127543 148896 156976 161304 175968 176598 215072 215842 235464 241956 255086 313952 322608 323763 353196 382629 431684 461117 470928 483912 510172 645216 647526 706392 765258 863368 922234 941856 967824 971289 1020344 1147887 1295052 1383351 1402973 1412784 1530516 1726736 1844468 1935648 1942578 2040688 2295774 2590104 2766702 2805946 2825568 3061032 3453472 3688936 3885156 4081376 4150053 4208919 4591548 5072287 5180208 5533404 5611892 5994521 6122064 7377872 7770312 8300106 8417838 9183096 10144574 10360416 11066808 11223784 11989042 12244128 12626757 14755744 15216861 15540624 16600212 16835676 17983563 18366192 20289148 22133616 22447568 23978084 25253514 30433722 31081248 33200424 33671352 35967126 36732384 40578296 44267232 44895136 45650583 47956168 50507028 53950689 60867444 65939731 66400848 67342704 71934252 81156592 91301166 95912336 101014056 107901378 121734888 131879462 132801696 134685408 143868504 162313184 182602332 191824672 197819193 202028112 215802756 243469776 263758924 287737008 365204664 395638386 404056224 431605512 486939552 527517848 575474016 593457579 730409328 791276772 863211024 1055035696 1186915158 1460818656 1582553544 1726422048 2110071392 2373830316 3165107088 4747660632 6330214176 9495321264 18990642528
- Sum of all divisors σ(n): 64802529792
- Sum of proper divisors (its aliquot sum) s(n): 45811887264
- 18990642528 is an abundant number, because the sum of its proper divisors (45811887264) is greater than itself. Its abundance is 26821244736
Bases of 18990642528
- Binary: 100011010111110111000110101011000002
- Hexadecimal: 0x46BEE3560
- Base-36: 8Q2JDK0
Squares and roots of 18990642528
- 18990642528 squared (189906425282) is 360644503626282230784
- 18990642528 cubed (189906425283) is 6848870848054725550457341181952
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The
square root of 18990642528 is 137806.5402221535 -
The
cube root of 18990642528 is 2667.9635154943
Scales and comparisons
How big is 18990642528?- 18,990,642,528 seconds is equal to 603 years, 43 weeks, 6 days, 2 hours, 28 minutes, 48 seconds.
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To count from 1 to 18,990,642,528 would take you about one thousand, two hundred seven 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 18990642528 cubic inches would be around 222.3 feet tall.
Recreational maths with 18990642528
- 18990642528 backwards is 82524609981
- The number of decimal digits it has is: 11
- The sum of 18990642528's digits is 54
- More coming soon!
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