138838700
138,838,700 is an even composite number composed of seven prime numbers multiplied together.
138838700 is an even composite number. It is composed of seven distinct prime numbers multiplied together. It has a total of two hundred eighty-eight divisors.
Prime factorization of 138838700:
22 × 52 × 7 × 11 × 13 × 19 × 73
(2 × 2 × 5 × 5 × 7 × 11 × 13 × 19 × 73)See below for interesting mathematical facts about the number 138838700 from the Numbermatics database.
Names of 138838700
- Cardinal: 138838700 can be written as One hundred thirty-eight million, eight hundred thirty-eight thousand, seven hundred.
Scientific notation
- Scientific notation: 1.388387 × 108
Factors of 138838700
Divisors of 138838700
- Number of divisors d(n): 288
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Complete list of divisors:
1 2 4 5 7 10 11 13 14 19 20 22 25 26 28 35 38 44 50 52 55 65 70 73 76 77 91 95 100 110 130 133 140 143 146 154 175 182 190 209 220 247 260 266 275 286 292 308 325 350 364 365 380 385 418 455 475 494 511 532 550 572 650 665 700 715 730 770 803 836 910 949 950 988 1001 1022 1045 1100 1235 1300 1330 1387 1430 1460 1463 1540 1606 1729 1820 1825 1898 1900 1925 2002 2044 2090 2275 2470 2555 2660 2717 2774 2860 2926 3212 3325 3458 3575 3650 3796 3850 4004 4015 4180 4550 4745 4940 5005 5110 5225 5434 5548 5621 5852 6175 6643 6650 6916 6935 7150 7300 7315 7700 8030 8645 9100 9490 9709 10010 10220 10439 10450 10868 11242 12350 12775 13286 13300 13585 13870 14300 14630 15257 16060 17290 18031 18980 19019 19418 20020 20075 20878 20900 22484 23725 24700 25025 25550 26572 27170 27740 28105 29260 30514 33215 34580 34675 36062 36575 38038 38836 40150 41756 43225 47450 48545 50050 51100 52195 54340 56210 61028 66430 67925 69350 72124 73073 73150 76076 76285 80300 86450 90155 94900 95095 97090 100100 104390 106799 112420 126217 132860 135850 138700 140525 146146 146300 152570 166075 172900 180310 190190 194180 198341 208780 213598 242725 252434 260975 271700 281050 292292 305140 332150 360620 365365 380380 381425 396682 427196 450775 475475 485450 504868 521950 533995 562100 631085 664300 730730 762850 793364 901550 950950 970900 991705 1043900 1067990 1262170 1388387 1461460 1525700 1803100 1826825 1901900 1983410 2135980 2524340 2669975 2776774 3155425 3653650 3966820 4958525 5339950 5553548 6310850 6941935 7307300 9917050 10679900 12621700 13883870 19834100 27767740 34709675 69419350 138838700
- Sum of all divisors σ(n): 431639040
- Sum of proper divisors (its aliquot sum) s(n): 292800340
- 138838700 is an abundant number, because the sum of its proper divisors (292800340) is greater than itself. Its abundance is 153961640
Bases of 138838700
- Binary: 10000100011010000010101011002
- Hexadecimal: 0x84682AC
- Base-36: 2ANSMK
Squares and roots of 138838700
- 138838700 squared (1388387002) is 19276184617690000
- 138838700 cubed (1388387003) is 2676280413280076603000000
-
The
square root of 138838700 is 11782.9834931565 -
The
cube root of 138838700 is 517.8096973915
Scales and comparisons
How big is 138838700?- 138,838,700 seconds is equal to 4 years, 21 weeks, 3 days, 22 hours, 18 minutes, 20 seconds.
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To count from 1 to 138,838,700 would take you about 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 138838700 cubic inches would be around 43.2 feet tall.
Recreational maths with 138838700
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