121639128
121,639,128 is an even composite number composed of six prime numbers multiplied together.
121639128 is an even composite number. It is composed of six distinct prime numbers multiplied together. It has a total of one hundred twenty-eight divisors.
Prime factorization of 121639128:
23 × 3 × 13 × 37 × 41 × 257
(2 × 2 × 2 × 3 × 13 × 37 × 41 × 257)See below for interesting mathematical facts about the number 121639128 from the Numbermatics database.
Names of 121639128
- Cardinal: 121639128 can be written as One hundred twenty-one million, six hundred thirty-nine thousand, one hundred twenty-eight.
Scientific notation
- Scientific notation: 1.21639128 × 108
Factors of 121639128
Divisors of 121639128
- Number of divisors d(n): 128
-
Complete list of divisors:
1 2 3 4 6 8 12 13 24 26 37 39 41 52 74 78 82 104 111 123 148 156 164 222 246 257 296 312 328 444 481 492 514 533 771 888 962 984 1028 1066 1443 1517 1542 1599 1924 2056 2132 2886 3034 3084 3198 3341 3848 4264 4551 5772 6068 6168 6396 6682 9102 9509 10023 10537 11544 12136 12792 13364 18204 19018 19721 20046 21074 26728 28527 31611 36408 38036 39442 40092 42148 57054 59163 63222 76072 78884 80184 84296 114108 118326 123617 126444 136981 157768 228216 236652 247234 252888 273962 370851 389869 410943 473304 494468 547924 741702 779738 821886 988936 1095848 1169607 1483404 1559476 1643772 2339214 2966808 3118952 3287544 4678428 5068297 9356856 10136594 15204891 20273188 30409782 40546376 60819564 121639128
- Sum of all divisors σ(n): 345885120
- Sum of proper divisors (its aliquot sum) s(n): 224245992
- 121639128 is an abundant number, because the sum of its proper divisors (224245992) is greater than itself. Its abundance is 102606864
Bases of 121639128
- Binary: 1110100000000010000110110002
- Hexadecimal: 0x74010D8
- Base-36: 20F5CO
Squares and roots of 121639128
- 121639128 squared (1216391282) is 14796077460600384
- 121639128 cubed (1216391283) is 1799781960127885066225152
-
The
square root of 121639128 is 11029.0130111447 -
The
cube root of 121639128 is 495.4780648233
Scales and comparisons
How big is 121639128?- 121,639,128 seconds is equal to 3 years, 45 weeks, 20 hours, 38 minutes, 48 seconds.
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To count from 1 to 121,639,128 would take you about five 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 121639128 cubic inches would be around 41.3 feet tall.
Recreational maths with 121639128
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