30789920
30,789,920 is an even composite number composed of five prime numbers multiplied together.
30789920 is an even composite number. It is composed of five distinct prime numbers multiplied together. It has a total of ninety-six divisors.
Prime factorization of 30789920:
25 × 5 × 7 × 37 × 743
(2 × 2 × 2 × 2 × 2 × 5 × 7 × 37 × 743)See below for interesting mathematical facts about the number 30789920 from the Numbermatics database.
Names of 30789920
- Cardinal: 30789920 can be written as Thirty million, seven hundred eighty-nine thousand, nine hundred twenty.
Scientific notation
- Scientific notation: 3.078992 × 107
Factors of 30789920
Divisors of 30789920
- Number of divisors d(n): 96
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Complete list of divisors:
1 2 4 5 7 8 10 14 16 20 28 32 35 37 40 56 70 74 80 112 140 148 160 185 224 259 280 296 370 518 560 592 740 743 1036 1120 1184 1295 1480 1486 2072 2590 2960 2972 3715 4144 5180 5201 5920 5944 7430 8288 10360 10402 11888 14860 20720 20804 23776 26005 27491 29720 41440 41608 52010 54982 59440 83216 104020 109964 118880 137455 166432 192437 208040 219928 274910 384874 416080 439856 549820 769748 832160 879712 962185 1099640 1539496 1924370 2199280 3078992 3848740 4398560 6157984 7697480 15394960 30789920
- Sum of all divisors σ(n): 85494528
- Sum of proper divisors (its aliquot sum) s(n): 54704608
- 30789920 is an abundant number, because the sum of its proper divisors (54704608) is greater than itself. Its abundance is 23914688
Bases of 30789920
- Binary: 11101010111010001001000002
- Hexadecimal: 0x1D5D120
- Base-36: IBXNK
Squares and roots of 30789920
- 30789920 squared (307899202) is 948019173606400
- 30789920 cubed (307899203) is 29189434513807167488000
-
The
square root of 30789920 is 5548.8665509273 -
The
cube root of 30789920 is 313.4268419671
Scales and comparisons
How big is 30789920?- 30,789,920 seconds is equal to 50 weeks, 6 days, 8 hours, 45 minutes, 20 seconds.
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To count from 1 to 30,789,920 would take you about twenty-four weeks!
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 30789920 cubic inches would be around 26.1 feet tall.
Recreational maths with 30789920
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