161199990
161,199,990 is an even composite number composed of six prime numbers multiplied together.
161199990 is an even composite number. It is composed of six distinct prime numbers multiplied together. It has a total of one hundred ninety-two divisors.
Prime factorization of 161199990:
2 × 33 × 5 × 7 × 19 × 672
(2 × 3 × 3 × 3 × 5 × 7 × 19 × 67 × 67)See below for interesting mathematical facts about the number 161199990 from the Numbermatics database.
Names of 161199990
- Cardinal: 161199990 can be written as One hundred sixty-one million, one hundred ninety-nine thousand, nine hundred ninety.
Scientific notation
- Scientific notation: 1.6119999 × 108
Factors of 161199990
Divisors of 161199990
- Number of divisors d(n): 192
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Complete list of divisors:
1 2 3 5 6 7 9 10 14 15 18 19 21 27 30 35 38 42 45 54 57 63 67 70 90 95 105 114 126 133 134 135 171 189 190 201 210 266 270 285 315 335 342 378 399 402 469 513 570 603 630 665 670 798 855 938 945 1005 1026 1197 1206 1273 1330 1407 1710 1809 1890 1995 2010 2345 2394 2546 2565 2814 3015 3591 3618 3819 3990 4221 4489 4690 5130 5985 6030 6365 7035 7182 7638 8442 8911 8978 9045 11457 11970 12663 12730 13467 14070 17822 17955 18090 19095 21105 22445 22914 25326 26733 26934 31423 34371 35910 38190 40401 42210 44555 44890 53466 57285 62846 63315 67335 68742 80199 80802 85291 89110 94269 114570 121203 126630 133665 134670 157115 160398 170582 171855 188538 202005 240597 242406 255873 267330 282807 314230 343710 400995 404010 426455 471345 481194 511746 565614 597037 606015 767619 801990 848421 852910 942690 1194074 1202985 1212030 1279365 1414035 1535238 1696842 1791111 2302857 2405970 2558730 2828070 2985185 3582222 3838095 4242105 4605714 5373333 5970370 7676190 8484210 8955555 10746666 11514285 16119999 17911110 23028570 26866665 32239998 53733330 80599995 161199990
- Sum of all divisors σ(n): 524966400
- Sum of proper divisors (its aliquot sum) s(n): 363766410
- 161199990 is an abundant number, because the sum of its proper divisors (363766410) is greater than itself. Its abundance is 202566420
Bases of 161199990
- Binary: 10011001101110110111011101102
- Hexadecimal: 0x99BB776
- Base-36: 2NZ2PI
Squares and roots of 161199990
- 161199990 squared (1611999902) is 25985436776000100
- 161199990 cubed (1611999903) is 4188852148436848359999000
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The
square root of 161199990 is 12696.4558046725 -
The
cube root of 161199990 is 544.2373419187
Scales and comparisons
How big is 161199990?- 161,199,990 seconds is equal to 5 years, 6 weeks, 3 days, 17 hours, 46 minutes, 30 seconds.
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To count from 1 to 161,199,990 would take you about 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 161199990 cubic inches would be around 45.4 feet tall.
Recreational maths with 161199990
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