172239990
172,239,990 is an even composite number composed of seven prime numbers multiplied together.
172239990 is an even composite number. It is composed of seven distinct prime numbers multiplied together. It has a total of one hundred twenty-eight divisors.
Prime factorization of 172239990:
2 × 3 × 5 × 13 × 29 × 97 × 157
See below for interesting mathematical facts about the number 172239990 from the Numbermatics database.
Names of 172239990
- Cardinal: 172239990 can be written as One hundred seventy-two million, two hundred thirty-nine thousand, nine hundred ninety.
Scientific notation
- Scientific notation: 1.7223999 × 108
Factors of 172239990
Divisors of 172239990
- Number of divisors d(n): 128
-
Complete list of divisors:
1 2 3 5 6 10 13 15 26 29 30 39 58 65 78 87 97 130 145 157 174 194 195 290 291 314 377 390 435 471 485 582 754 785 870 942 970 1131 1261 1455 1570 1885 2041 2262 2355 2522 2813 2910 3770 3783 4082 4553 4710 5626 5655 6123 6305 7566 8439 9106 10205 11310 12246 12610 13659 14065 15229 16878 18915 20410 22765 27318 28130 30458 30615 36569 37830 42195 45530 45687 59189 61230 68295 73138 76145 84390 91374 109707 118378 136590 152290 177567 182845 197977 219414 228435 295945 355134 365690 395954 441641 456870 548535 591890 593931 883282 887835 989885 1097070 1187862 1324923 1775670 1979770 2208205 2649846 2969655 4416410 5741333 5939310 6624615 11482666 13249230 17223999 28706665 34447998 57413330 86119995 172239990
- Sum of all divisors σ(n): 468236160
- Sum of proper divisors (its aliquot sum) s(n): 295996170
- 172239990 is an abundant number, because the sum of its proper divisors (295996170) is greater than itself. Its abundance is 123756180
Bases of 172239990
- Binary: 10100100010000101100011101102
- Hexadecimal: 0xA442C76
- Base-36: 2UJP86
Squares and roots of 172239990
- 172239990 squared (1722399902) is 29666614155200100
- 172239990 cubed (1722399903) is 5109777325425523671999000
-
The
square root of 172239990 is 13124.0233922375 -
The
cube root of 172239990 is 556.3883106807
Scales and comparisons
How big is 172239990?- 172,239,990 seconds is equal to 5 years, 24 weeks, 5 days, 12 hours, 26 minutes, 30 seconds.
-
To count from 1 to 172,239,990 would take you about eight 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 172239990 cubic inches would be around 46.4 feet tall.
Recreational maths with 172239990
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