18168978912
18,168,978,912 is an even composite number composed of six prime numbers multiplied together.
18168978912 is an even composite number. It is composed of six distinct prime numbers multiplied together. It has a total of three hundred eighty-four divisors.
Prime factorization of 18168978912:
25 × 3 × 73 × 19 × 113 × 257
(2 × 2 × 2 × 2 × 2 × 3 × 7 × 7 × 7 × 19 × 113 × 257)See below for interesting mathematical facts about the number 18168978912 from the Numbermatics database.
Names of 18168978912
- Cardinal: 18168978912 can be written as Eighteen billion, one hundred sixty-eight million, nine hundred seventy-eight thousand, nine hundred twelve.
Scientific notation
- Scientific notation: 1.8168978912 × 1010
Factors of 18168978912
Divisors of 18168978912
- Number of divisors d(n): 384
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Complete list of divisors:
1 2 3 4 6 7 8 12 14 16 19 21 24 28 32 38 42 48 49 56 57 76 84 96 98 112 113 114 133 147 152 168 196 224 226 228 257 266 294 304 336 339 343 392 399 452 456 514 532 588 608 672 678 686 771 784 791 798 904 912 931 1028 1029 1064 1176 1356 1372 1542 1568 1582 1596 1799 1808 1824 1862 2056 2058 2128 2147 2352 2373 2712 2744 2793 3084 3164 3192 3598 3616 3724 4112 4116 4256 4294 4704 4746 4883 5397 5424 5488 5537 5586 6168 6328 6384 6441 6517 7196 7448 8224 8232 8588 9492 9766 10794 10848 10976 11074 11172 12336 12593 12656 12768 12882 13034 14392 14649 14896 15029 16464 16611 17176 18984 19532 19551 21588 22148 22344 24672 25186 25312 25764 26068 28784 29041 29298 29792 30058 32928 33222 34181 34352 37779 37968 38759 39064 39102 43176 44296 44688 45087 50372 51528 52136 57568 58082 58596 60116 66444 68362 68704 75558 75936 77518 78128 78204 86352 87123 88151 88592 89376 90174 100744 102543 103056 104272 105203 116164 116277 117192 120232 132888 136724 151116 155036 156256 156408 172704 174246 176302 177184 180348 201488 203287 205086 206112 208544 210406 232328 232554 234384 239267 240464 264453 265776 273448 302232 310072 312816 315609 348492 352604 360696 402976 406574 410172 420812 464656 465108 468768 478534 480928 528906 531552 546896 551779 604464 609861 620144 625632 631218 696984 705208 717801 721392 736421 813148 820344 841624 929312 930216 957068 1057812 1093792 1103558 1208928 1219722 1240288 1262436 1393968 1410416 1423009 1435602 1442784 1472842 1626296 1640688 1655337 1674869 1683248 1860432 1914136 2115624 2207116 2209263 2439444 2524872 2787936 2820832 2846018 2871204 2945684 3252592 3281376 3310674 3349738 3366496 3720864 3828272 3862453 4231248 4269027 4414232 4418526 4878888 5024607 5049744 5692036 5742408 5891368 6505184 6621348 6699476 7656544 7724906 8462496 8538054 8828464 8837052 9757776 9961063 10049214 10099488 11384072 11484816 11587359 11782736 13242696 13398952 15449812 17076108 17656928 17674104 19515552 19922126 20098428 22768144 22969632 23174718 23565472 26485392 26797904 27037171 29883189 30899624 34152216 35348208 39844252 40196856 45536288 46349436 52970784 53595808 54074342 59766378 61799248 68304432 70696416 79688504 80393712 81111513 92698872 108148684 119532756 123598496 136608864 159377008 160787424 162223026 185397744 189260197 216297368 239065512 318754016 324446052 370795488 378520394 432594736 478131024 567780591 648892104 757040788 865189472 956262048 1135561182 1297784208 1514081576 2271122364 2595568416 3028163152 4542244728 6056326304 9084489456 18168978912
- Sum of all divisors σ(n): 59294592000
- Sum of proper divisors (its aliquot sum) s(n): 41125613088
- 18168978912 is an abundant number, because the sum of its proper divisors (41125613088) is greater than itself. Its abundance is 22956634176
Bases of 18168978912
- Binary: 100001110101111010010011101111000002
- Hexadecimal: 0x43AF49DE0
- Base-36: 8CHC9UO
Squares and roots of 18168978912
- 18168978912 squared (181689789122) is 330111794704700703744
- 18168978912 cubed (181689789123) is 5997794236592180353596295446528
-
The
square root of 18168978912 is 134792.3547980375 -
The
cube root of 18168978912 is 2628.9167910289
Scales and comparisons
How big is 18168978912?- 18,168,978,912 seconds is equal to 577 years, 37 weeks, 2 days, 2 hours, 35 minutes, 12 seconds.
-
To count from 1 to 18,168,978,912 would take you about one thousand, one hundred fifty-five 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 18168978912 cubic inches would be around 219.1 feet tall.
Recreational maths with 18168978912
- 18168978912 backwards is 21987986181
- The number of decimal digits it has is: 11
- The sum of 18168978912's digits is 60
- More coming soon!
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