1242945

1,242,945 is an odd composite number composed of four prime numbers multiplied together.

What does the number 1242945 look like?

This visualization shows the relationship between its 4 prime factors (large circles) and 56 divisors.

1242945 is an odd composite number. It is composed of four distinct prime numbers multiplied together. It has a total of fifty-six divisors.

Prime factorization of 1242945:

3⁶ × 5 × 11 × 31

(3 × 3 × 3 × 3 × 3 × 3 × 5 × 11 × 31)

See below for interesting mathematical facts about the number 1242945 from the Numbermatics database.

Names of 1242945

Cardinal: 1242945 can be written as One million, two hundred forty-two thousand, nine hundred forty-five.

Scientific notation

Scientific notation: 1.242945 × 10⁶

Factors of 1242945

Number of distinct prime factors ω(n): 4
Total number of prime factors Ω(n): 9
Sum of prime factors: 50

Divisors of 1242945

Number of divisors d(n): 56
Complete list of divisors:
1 3 5 9 11 15 27 31 33 45 55 81 93 99 135 155 165 243 279 297 341 405 465 495 729 837 891 1023 1215 1395 1485 1705 2511 2673 3069 3645 4185 4455 5115 7533 8019 9207 12555 13365 15345 22599 27621 37665 40095 46035 82863 112995 138105 248589 414315 1242945
Sum of all divisors σ(n): 2518272
Sum of proper divisors (its aliquot sum) s(n): 1275327
1242945 is an abundant number, because the sum of its proper divisors (1275327) is greater than itself. Its abundance is 32382

Bases of 1242945

Binary: 100101111011101000001₂
Hexadecimal: 0x12F741
Base-36: QN29

Squares and roots of 1242945

1242945 squared (1242945²) is 1544912273025
1242945 cubed (1242945³) is 1920240985195058625
The square root of 1242945 is 1114.8744323913
The cube root of 1242945 is 107.5186915401

Scales and comparisons

How big is 1242945?

1,242,945 seconds is equal to 2 weeks, 9 hours, 15 minutes, 45 seconds.
To count from 1 to 1,242,945 would take you about three 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 1242945 cubic inches would be around 9 feet tall.

Recreational maths with 1242945

1242945 backwards is 5492421
1242945 is a Harshad number.
The number of decimal digits it has is: 7
The sum of 1242945's digits is 27
More coming soon!

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The information we have on file for 1242945 includes mathematical data and numerical statistics calculated using standard algorithms and methods. We are adding more all the time. If there are any features you would like to see, please contact us. Information provided for educational use, intellectual curiosity and fun!

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