121898400
121,898,400 is an even composite number composed of five prime numbers multiplied together.
121898400 is an even composite number. It is composed of five distinct prime numbers multiplied together. It has a total of one hundred forty-four divisors.
Prime factorization of 121898400:
25 × 3 × 52 × 13 × 3907
(2 × 2 × 2 × 2 × 2 × 3 × 5 × 5 × 13 × 3907)See below for interesting mathematical facts about the number 121898400 from the Numbermatics database.
Names of 121898400
- Cardinal: 121898400 can be written as One hundred twenty-one million, eight hundred ninety-eight thousand, four hundred.
Scientific notation
- Scientific notation: 1.218984 × 108
Factors of 121898400
Divisors of 121898400
- Number of divisors d(n): 144
-
Complete list of divisors:
1 2 3 4 5 6 8 10 12 13 15 16 20 24 25 26 30 32 39 40 48 50 52 60 65 75 78 80 96 100 104 120 130 150 156 160 195 200 208 240 260 300 312 325 390 400 416 480 520 600 624 650 780 800 975 1040 1200 1248 1300 1560 1950 2080 2400 2600 3120 3900 3907 5200 6240 7800 7814 10400 11721 15600 15628 19535 23442 31200 31256 39070 46884 50791 58605 62512 78140 93768 97675 101582 117210 125024 152373 156280 187536 195350 203164 234420 253955 293025 304746 312560 375072 390700 406328 468840 507910 586050 609492 625120 761865 781400 812656 937680 1015820 1172100 1218984 1269775 1523730 1562800 1625312 1875360 2031640 2344200 2437968 2539550 3047460 3125600 3809325 4063280 4688400 4875936 5079100 6094920 7618650 8126560 9376800 10158200 12189840 15237300 20316400 24379680 30474600 40632800 60949200 121898400
- Sum of all divisors σ(n): 427410144
- Sum of proper divisors (its aliquot sum) s(n): 305511744
- 121898400 is an abundant number, because the sum of its proper divisors (305511744) is greater than itself. Its abundance is 183613344
Bases of 121898400
- Binary: 1110100010000000101101000002
- Hexadecimal: 0x74405A0
- Base-36: 20KPEO
Squares and roots of 121898400
- 121898400 squared (1218984002) is 14859219922560000
- 121898400 cubed (1218984003) is 1811315133808187904000000
-
The
square root of 121898400 is 11040.7608433479 -
The
cube root of 121898400 is 495.8298497193
Scales and comparisons
How big is 121898400?- 121,898,400 seconds is equal to 3 years, 45 weeks, 3 days, 20 hours, 40 minutes.
-
To count from 1 to 121,898,400 would take you about 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 121898400 cubic inches would be around 41.3 feet tall.
Recreational maths with 121898400
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