145636890
145,636,890 is an even composite number composed of six prime numbers multiplied together.
145636890 is an even composite number. It is composed of six distinct prime numbers multiplied together. It has a total of sixty-four divisors.
Prime factorization of 145636890:
2 × 3 × 5 × 7 × 61 × 11369
See below for interesting mathematical facts about the number 145636890 from the Numbermatics database.
Names of 145636890
- Cardinal: 145636890 can be written as One hundred forty-five million, six hundred thirty-six thousand, eight hundred ninety.
Scientific notation
- Scientific notation: 1.4563689 × 108
Factors of 145636890
Divisors of 145636890
- Number of divisors d(n): 64
-
Complete list of divisors:
1 2 3 5 6 7 10 14 15 21 30 35 42 61 70 105 122 183 210 305 366 427 610 854 915 1281 1830 2135 2562 4270 6405 11369 12810 22738 34107 56845 68214 79583 113690 159166 170535 238749 341070 397915 477498 693509 795830 1193745 1387018 2080527 2387490 3467545 4161054 4854563 6935090 9709126 10402635 14563689 20805270 24272815 29127378 48545630 72818445 145636890
- Sum of all divisors σ(n): 406045440
- Sum of proper divisors (its aliquot sum) s(n): 260408550
- 145636890 is an abundant number, because the sum of its proper divisors (260408550) is greater than itself. Its abundance is 114771660
Bases of 145636890
- Binary: 10001010111000111110000110102
- Hexadecimal: 0x8AE3E1A
- Base-36: 2EPI56
Squares and roots of 145636890
- 145636890 squared (1456368902) is 21210103728872100
- 145636890 cubed (1456368903) is 3088973543650335851769000
-
The
square root of 145636890 is 12068.0110208765 -
The
cube root of 145636890 is 526.1268494637
Scales and comparisons
How big is 145636890?- 145,636,890 seconds is equal to 4 years, 32 weeks, 5 days, 14 hours, 41 minutes, 30 seconds.
-
To count from 1 to 145,636,890 would take you about six 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 145636890 cubic inches would be around 43.8 feet tall.
Recreational maths with 145636890
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