131211808
131,211,808 is an even composite number composed of five prime numbers multiplied together.
131211808 is an even composite number. It is composed of five distinct prime numbers multiplied together. It has a total of one hundred forty-four divisors.
Prime factorization of 131211808:
25 × 72 × 13 × 41 × 157
(2 × 2 × 2 × 2 × 2 × 7 × 7 × 13 × 41 × 157)See below for interesting mathematical facts about the number 131211808 from the Numbermatics database.
Names of 131211808
- Cardinal: 131211808 can be written as One hundred thirty-one million, two hundred eleven thousand, eight hundred eight.
Scientific notation
- Scientific notation: 1.31211808 × 108
Factors of 131211808
Divisors of 131211808
- Number of divisors d(n): 144
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Complete list of divisors:
1 2 4 7 8 13 14 16 26 28 32 41 49 52 56 82 91 98 104 112 157 164 182 196 208 224 287 314 328 364 392 416 533 574 628 637 656 728 784 1066 1099 1148 1256 1274 1312 1456 1568 2009 2041 2132 2198 2296 2512 2548 2912 3731 4018 4082 4264 4396 4592 5024 5096 6437 7462 7693 8036 8164 8528 8792 9184 10192 12874 14287 14924 15386 16072 16328 17056 17584 20384 25748 26117 28574 29848 30772 32144 32656 35168 45059 51496 52234 57148 59696 61544 64288 65312 83681 90118 100009 102992 104468 114296 119392 123088 167362 180236 200018 205984 208936 228592 246176 315413 334724 360472 400036 417872 457184 585767 630826 669448 720944 800072 835744 1171534 1261652 1338896 1441888 1600144 2343068 2523304 2677792 3200288 4100369 4686136 5046608 8200738 9372272 10093216 16401476 18744544 32802952 65605904 131211808
- Sum of all divisors σ(n): 333618264
- Sum of proper divisors (its aliquot sum) s(n): 202406456
- 131211808 is an abundant number, because the sum of its proper divisors (202406456) is greater than itself. Its abundance is 71194648
Bases of 131211808
- Binary: 1111101001000100010001000002
- Hexadecimal: 0x7D22220
- Base-36: 264BOG
Squares and roots of 131211808
- 131211808 squared (1312118082) is 17216538558628864
- 131211808 cubed (1312118083) is 2259013151779407246426112
-
The
square root of 131211808 is 11454.7722805825 -
The
cube root of 131211808 is 508.1488806611
Scales and comparisons
How big is 131211808?- 131,211,808 seconds is equal to 4 years, 8 weeks, 6 days, 15 hours, 43 minutes, 28 seconds.
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To count from 1 to 131,211,808 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 131211808 cubic inches would be around 42.3 feet tall.
Recreational maths with 131211808
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