981990400
981,990,400 is an even composite number composed of four prime numbers multiplied together.
981990400 is an even composite number. It is composed of four distinct prime numbers multiplied together. It has a total of one hundred thirty-two divisors.
Prime factorization of 981990400:
210 × 52 × 89 × 431
(2 × 2 × 2 × 2 × 2 × 2 × 2 × 2 × 2 × 2 × 5 × 5 × 89 × 431)See below for interesting mathematical facts about the number 981990400 from the Numbermatics database.
Names of 981990400
- Cardinal: 981990400 can be written as Nine hundred eighty-one million, nine hundred ninety thousand, four hundred.
Scientific notation
- Scientific notation: 9.819904 × 108
Factors of 981990400
Divisors of 981990400
- Number of divisors d(n): 132
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Complete list of divisors:
1 2 4 5 8 10 16 20 25 32 40 50 64 80 89 100 128 160 178 200 256 320 356 400 431 445 512 640 712 800 862 890 1024 1280 1424 1600 1724 1780 2155 2225 2560 2848 3200 3448 3560 4310 4450 5120 5696 6400 6896 7120 8620 8900 10775 11392 12800 13792 14240 17240 17800 21550 22784 25600 27584 28480 34480 35600 38359 43100 45568 55168 56960 68960 71200 76718 86200 91136 110336 113920 137920 142400 153436 172400 191795 220672 227840 275840 284800 306872 344800 383590 441344 455680 551680 569600 613744 689600 767180 958975 1103360 1139200 1227488 1379200 1534360 1917950 2206720 2278400 2454976 2758400 3068720 3835900 4909952 5516800 6137440 7671800 9819904 11033600 12274880 15343600 19639808 24549760 30687200 39279616 49099520 61374400 98199040 122748800 196398080 245497600 490995200 981990400
- Sum of all divisors σ(n): 2467208160
- Sum of proper divisors (its aliquot sum) s(n): 1485217760
- 981990400 is an abundant number, because the sum of its proper divisors (1485217760) is greater than itself. Its abundance is 503227360
Bases of 981990400
- Binary: 1110101000011111111100000000002
- Hexadecimal: 0x3A87FC00
- Base-36: G8NGN4
Squares and roots of 981990400
- 981990400 squared (9819904002) is 964305145692160000
- 981990400 cubed (9819904003) is 946938395740302475264000000
-
The
square root of 981990400 is 31336.7260574553 -
The
cube root of 981990400 is 993.9603966263
Scales and comparisons
How big is 981990400?- 981,990,400 seconds is equal to 31 years, 11 weeks, 4 days, 15 hours, 6 minutes, 40 seconds.
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To count from 1 to 981,990,400 would take you about forty-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 981990400 cubic inches would be around 82.8 feet tall.
Recreational maths with 981990400
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