18138737916
18,138,737,916 is an even composite number composed of five prime numbers multiplied together.
18138737916 is an even composite number. It is composed of five distinct prime numbers multiplied together. It has a total of two hundred sixteen divisors.
Prime factorization of 18138737916:
22 × 35 × 13 × 89 × 1272
(2 × 2 × 3 × 3 × 3 × 3 × 3 × 13 × 89 × 127 × 127)See below for interesting mathematical facts about the number 18138737916 from the Numbermatics database.
Names of 18138737916
- Cardinal: 18138737916 can be written as Eighteen billion, one hundred thirty-eight million, seven hundred thirty-seven thousand, nine hundred sixteen.
Scientific notation
- Scientific notation: 1.8138737916 × 1010
Factors of 18138737916
Divisors of 18138737916
- Number of divisors d(n): 216
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Complete list of divisors:
1 2 3 4 6 9 12 13 18 26 27 36 39 52 54 78 81 89 108 117 127 156 162 178 234 243 254 267 324 351 356 381 468 486 508 534 702 762 801 972 1053 1068 1143 1157 1404 1524 1602 1651 2106 2286 2314 2403 3159 3204 3302 3429 3471 4212 4572 4628 4806 4953 6318 6604 6858 6942 7209 9612 9906 10287 10413 11303 12636 13716 13884 14418 14859 16129 19812 20574 20826 21627 22606 28836 29718 30861 31239 32258 33909 41148 41652 43254 44577 45212 48387 59436 61722 62478 64516 67818 86508 89154 93717 96774 101727 123444 124956 133731 135636 145161 146939 178308 187434 193548 203454 209677 267462 281151 290322 293878 305181 374868 401193 406908 419354 435483 440817 534924 562302 580644 587756 610362 629031 802386 838708 870966 881634 915543 1124604 1220724 1258062 1306449 1322451 1435481 1604772 1741932 1763268 1831086 1887093 2516124 2612898 2644902 2746629 2870962 3662172 3774186 3919347 3967353 4306443 5225796 5289804 5493258 5661279 5741924 7548372 7838694 7934706 8612886 10986516 11322558 11902059 12919329 15677388 15869412 16983837 17225772 18661253 22645116 23804118 25838658 33967674 35706177 37322506 38757987 47608236 50951511 51677316 55983759 67935348 71412354 74645012 77515974 101903022 111967518 116273961 142824708 155031948 167951277 203806044 223935036 232547922 335902554 348821883 465095844 503853831 671805108 697643766 1007707662 1395287532 1511561493 2015415324 3023122986 4534684479 6046245972 9069368958 18138737916
- Sum of all divisors σ(n): 52192773360
- Sum of proper divisors (its aliquot sum) s(n): 34054035444
- 18138737916 is an abundant number, because the sum of its proper divisors (34054035444) is greater than itself. Its abundance is 15915297528
Bases of 18138737916
- Binary: 100001110010010011100101100111111002
- Hexadecimal: 0x439272CFC
- Base-36: 8BZC3R0
Squares and roots of 18138737916
- 18138737916 squared (181387379162) is 329013813185336023056
- 18138737916 cubed (181387379163) is 5967895328112595256606517391296
-
The
square root of 18138737916 is 134680.1318532173 -
The
cube root of 18138737916 is 2627.4574316199
Scales and comparisons
How big is 18138737916?- 18,138,737,916 seconds is equal to 576 years, 39 weeks, 2 days, 2 hours, 18 minutes, 36 seconds.
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To count from 1 to 18,138,737,916 would take you about one thousand, one hundred fifty-three 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 18138737916 cubic inches would be around 219 feet tall.
Recreational maths with 18138737916
- 18138737916 backwards is 61973783181
- 18138737916 is a
Harshad number . - The number of decimal digits it has is: 11
- The sum of 18138737916's digits is 54
- More coming soon!
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