161243264
161,243,264 is an even composite number composed of five prime numbers multiplied together.
161243264 is an even composite number. It is composed of five distinct prime numbers multiplied together. It has a total of one hundred twenty-eight divisors.
Prime factorization of 161243264:
27 × 7 × 13 × 109 × 127
(2 × 2 × 2 × 2 × 2 × 2 × 2 × 7 × 13 × 109 × 127)See below for interesting mathematical facts about the number 161243264 from the Numbermatics database.
Names of 161243264
- Cardinal: 161243264 can be written as One hundred sixty-one million, two hundred forty-three thousand, two hundred sixty-four.
Scientific notation
- Scientific notation: 1.61243264 × 108
Factors of 161243264
Divisors of 161243264
- Number of divisors d(n): 128
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Complete list of divisors:
1 2 4 7 8 13 14 16 26 28 32 52 56 64 91 104 109 112 127 128 182 208 218 224 254 364 416 436 448 508 728 763 832 872 889 896 1016 1417 1456 1526 1651 1664 1744 1778 2032 2834 2912 3052 3302 3488 3556 4064 5668 5824 6104 6604 6976 7112 8128 9919 11336 11557 11648 12208 13208 13843 13952 14224 16256 19838 22672 23114 24416 26416 27686 28448 39676 45344 46228 48832 52832 55372 56896 79352 90688 92456 96901 97664 105664 110744 113792 158704 179959 181376 184912 193802 211328 221488 317408 359918 369824 387604 442976 634816 719836 739648 775208 885952 1259713 1269632 1439672 1479296 1550416 1771904 2519426 2879344 3100832 5038852 5758688 6201664 10077704 11517376 12403328 20155408 23034752 40310816 80621632 161243264
- Sum of all divisors σ(n): 402124800
- Sum of proper divisors (its aliquot sum) s(n): 240881536
- 161243264 is an abundant number, because the sum of its proper divisors (240881536) is greater than itself. Its abundance is 79638272
Bases of 161243264
- Binary: 10011001110001100000100000002
- Hexadecimal: 0x99C6080
- Base-36: 2O003K
Squares and roots of 161243264
- 161243264 squared (1612432642) is 25999390185373696
- 161243264 cubed (1612432643) is 4192226535499219802783744
-
The
square root of 161243264 is 12698.1598666893 -
The
cube root of 161243264 is 544.2860375785
Scales and comparisons
How big is 161243264?- 161,243,264 seconds is equal to 5 years, 6 weeks, 4 days, 5 hours, 47 minutes, 44 seconds.
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To count from 1 to 161,243,264 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 161243264 cubic inches would be around 45.4 feet tall.
Recreational maths with 161243264
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