31142748
31,142,748 is an even composite number composed of six prime numbers multiplied together.
31142748 is an even composite number. It is composed of six distinct prime numbers multiplied together. It has a total of one hundred forty-four divisors.
Prime factorization of 31142748:
22 × 3 × 7 × 13 × 192 × 79
(2 × 2 × 3 × 7 × 13 × 19 × 19 × 79)See below for interesting mathematical facts about the number 31142748 from the Numbermatics database.
Names of 31142748
- Cardinal: 31142748 can be written as Thirty-one million, one hundred forty-two thousand, seven hundred forty-eight.
Scientific notation
- Scientific notation: 3.1142748 × 107
Factors of 31142748
Divisors of 31142748
- Number of divisors d(n): 144
-
Complete list of divisors:
1 2 3 4 6 7 12 13 14 19 21 26 28 38 39 42 52 57 76 78 79 84 91 114 133 156 158 182 228 237 247 266 273 316 361 364 399 474 494 532 546 553 722 741 798 948 988 1027 1083 1092 1106 1444 1482 1501 1596 1659 1729 2054 2166 2212 2527 2964 3002 3081 3318 3458 4108 4332 4503 4693 5054 5187 6004 6162 6636 6916 7189 7581 9006 9386 10108 10374 10507 12324 14079 14378 15162 18012 18772 19513 20748 21014 21567 28158 28519 28756 30324 31521 32851 39026 42028 43134 56316 57038 58539 63042 65702 78052 85557 86268 98553 114076 117078 126084 131404 136591 171114 197106 199633 234156 273182 342228 370747 394212 399266 409773 546364 598899 741494 798532 819546 1112241 1197798 1482988 1639092 2224482 2395596 2595229 4448964 5190458 7785687 10380916 15571374 31142748
- Sum of all divisors σ(n): 95585280
- Sum of proper divisors (its aliquot sum) s(n): 64442532
- 31142748 is an abundant number, because the sum of its proper divisors (64442532) is greater than itself. Its abundance is 33299784
Bases of 31142748
- Binary: 11101101100110011010111002
- Hexadecimal: 0x1DB335C
- Base-36: IJHWC
Squares and roots of 31142748
- 31142748 squared (311427482) is 969870752991504
- 31142748 cubed (311427483) is 30204440452984655212992
-
The
square root of 31142748 is 5580.5687882151 -
The
cube root of 31142748 is 314.6195053047
Scales and comparisons
How big is 31142748?- 31,142,748 seconds is equal to 51 weeks, 3 days, 10 hours, 45 minutes, 48 seconds.
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To count from 1 to 31,142,748 would take you about twenty-five 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 31142748 cubic inches would be around 26.2 feet tall.
Recreational maths with 31142748
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