991349128
991,349,128 is an even composite number composed of five prime numbers multiplied together.
991349128 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 991349128:
23 × 7 × 112 × 23 × 6361
(2 × 2 × 2 × 7 × 11 × 11 × 23 × 6361)See below for interesting mathematical facts about the number 991349128 from the Numbermatics database.
Names of 991349128
- Cardinal: 991349128 can be written as Nine hundred ninety-one million, three hundred forty-nine thousand, one hundred twenty-eight.
Scientific notation
- Scientific notation: 9.91349128 × 108
Factors of 991349128
Divisors of 991349128
- Number of divisors d(n): 96
-
Complete list of divisors:
1 2 4 7 8 11 14 22 23 28 44 46 56 77 88 92 121 154 161 184 242 253 308 322 484 506 616 644 847 968 1012 1288 1694 1771 2024 2783 3388 3542 5566 6361 6776 7084 11132 12722 14168 19481 22264 25444 38962 44527 50888 69971 77924 89054 139942 146303 155848 178108 279884 292606 356216 489797 559768 585212 769681 979594 1024121 1170424 1539362 1609333 1959188 2048242 3078724 3218666 3918376 4096484 5387767 6157448 6437332 8192968 10775534 11265331 12874664 17702663 21551068 22530662 35405326 43102136 45061324 70810652 90122648 123918641 141621304 247837282 495674564 991349128
- Sum of all divisors σ(n): 2436900480
- Sum of proper divisors (its aliquot sum) s(n): 1445551352
- 991349128 is an abundant number, because the sum of its proper divisors (1445551352) is greater than itself. Its abundance is 454202224
Bases of 991349128
- Binary: 1110110001011011001001100010002
- Hexadecimal: 0x3B16C988
- Base-36: GE81VS
Squares and roots of 991349128
- 991349128 squared (9913491282) is 982773093586360384
- 991349128 cubed (9913491283) is 974271249348700759372145152
-
The
square root of 991349128 is 31485.6971972989 -
The
cube root of 991349128 is 997.1080205171
Scales and comparisons
How big is 991349128?- 991,349,128 seconds is equal to 31 years, 27 weeks, 22 hours, 45 minutes, 28 seconds.
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To count from 1 to 991,349,128 would take you about forty-seven 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 991349128 cubic inches would be around 83.1 feet tall.
Recreational maths with 991349128
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