138898560
138,898,560 is an even composite number composed of five prime numbers multiplied together.
138898560 is an even composite number. It is composed of five distinct prime numbers multiplied together. It has a total of one hundred twenty-eight divisors.
Prime factorization of 138898560:
27 × 3 × 5 × 73 × 991
(2 × 2 × 2 × 2 × 2 × 2 × 2 × 3 × 5 × 73 × 991)See below for interesting mathematical facts about the number 138898560 from the Numbermatics database.
Names of 138898560
- Cardinal: 138898560 can be written as One hundred thirty-eight million, eight hundred ninety-eight thousand, five hundred sixty.
Scientific notation
- Scientific notation: 1.3889856 × 108
Factors of 138898560
Divisors of 138898560
- Number of divisors d(n): 128
-
Complete list of divisors:
1 2 3 4 5 6 8 10 12 15 16 20 24 30 32 40 48 60 64 73 80 96 120 128 146 160 192 219 240 292 320 365 384 438 480 584 640 730 876 960 991 1095 1168 1460 1752 1920 1982 2190 2336 2920 2973 3504 3964 4380 4672 4955 5840 5946 7008 7928 8760 9344 9910 11680 11892 14016 14865 15856 17520 19820 23360 23784 28032 29730 31712 35040 39640 46720 47568 59460 63424 70080 72343 79280 95136 118920 126848 140160 144686 158560 190272 217029 237840 289372 317120 361715 380544 434058 475680 578744 634240 723430 868116 951360 1085145 1157488 1446860 1736232 1902720 2170290 2314976 2893720 3472464 4340580 4629952 5787440 6944928 8681160 9259904 11574880 13889856 17362320 23149760 27779712 34724640 46299520 69449280 138898560
- Sum of all divisors σ(n): 449256960
- Sum of proper divisors (its aliquot sum) s(n): 310358400
- 138898560 is an abundant number, because the sum of its proper divisors (310358400) is greater than itself. Its abundance is 171459840
Bases of 138898560
- Binary: 10000100011101101100100000002
- Hexadecimal: 0x8476C80
- Base-36: 2AP2TC
Squares and roots of 138898560
- 138898560 squared (1388985602) is 19292809970073600
- 138898560 cubed (1388985603) is 2679743523196866134016000
-
The
square root of 138898560 is 11785.5233231281 -
The
cube root of 138898560 is 517.8841042029
Scales and comparisons
How big is 138898560?- 138,898,560 seconds is equal to 4 years, 21 weeks, 4 days, 14 hours, 56 minutes.
-
To count from 1 to 138,898,560 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 138898560 cubic inches would be around 43.2 feet tall.
Recreational maths with 138898560
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