997938981
997,938,981 is an odd composite number composed of six prime numbers multiplied together.
997938981 is an odd composite number. It is composed of six distinct prime numbers multiplied together. It has a total of one hundred twenty-eight divisors.
Prime factorization of 997938981:
33 × 13 × 17 × 29 × 73 × 79
(3 × 3 × 3 × 13 × 17 × 29 × 73 × 79)See below for interesting mathematical facts about the number 997938981 from the Numbermatics database.
Names of 997938981
- Cardinal: 997938981 can be written as Nine hundred ninety-seven million, nine hundred thirty-eight thousand, nine hundred eighty-one.
Scientific notation
- Scientific notation: 9.97938981 × 108
Factors of 997938981
Divisors of 997938981
- Number of divisors d(n): 128
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Complete list of divisors:
1 3 9 13 17 27 29 39 51 73 79 87 117 153 219 221 237 261 351 377 459 493 657 663 711 783 949 1027 1131 1241 1343 1479 1971 1989 2117 2133 2291 2847 3081 3393 3723 4029 4437 5767 5967 6351 6409 6873 8541 9243 10179 11169 12087 13311 16133 17301 17459 19053 19227 20619 25623 27521 27729 29783 33507 35989 36261 38947 48399 51903 52377 57159 57681 61857 74971 82563 89349 98039 107967 116841 145197 155709 157131 167243 173043 224913 247689 268047 294117 323901 350523 435591 467857 471393 501729 506311 674739 743067 804141 882351 971703 1051569 1274507 1403571 1505187 1518933 2024217 2174159 2647053 2843131 3823521 4210713 4515561 4556799 6522477 8529393 11470563 12632139 13670397 19567431 25588179 34411689 36960703 58702293 76764537 110882109 332646327 997938981
- Sum of all divisors σ(n): 1790208000
- Sum of proper divisors (its aliquot sum) s(n): 792269019
- 997938981 is a deficient number, because the sum of its proper divisors (792269019) is less than itself. Its deficiency is 205669962
Bases of 997938981
- Binary: 1110110111101101010111001001012
- Hexadecimal: 0x3B7B5725
- Base-36: GI5AN9
Squares and roots of 997938981
- 997938981 squared (9979389812) is 995882209799318361
- 997938981 cubed (9979389813) is 993829677643159979670930141
-
The
square root of 997938981 is 31590.1722217527 -
The
cube root of 997938981 is 999.3125211479
Scales and comparisons
How big is 997938981?- 997,938,981 seconds is equal to 31 years, 38 weeks, 5 hours, 16 minutes, 21 seconds.
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To count from 1 to 997,938,981 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 997938981 cubic inches would be around 83.3 feet tall.
Recreational maths with 997938981
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