168990138 is an even 9-digits composite number following 168990137
and preceding 168990139 . In scientific notation, it is written as 1.68990138 × 10^8.
The sum of its digits is 45. It has a total of 5 prime factors and 24 positive divisors.
There are 55944000 positive integers (up to 168990138) that are relatively prime to 168990138.
168990138 has 24 divisors, whose sum is 286731900
The reverse of 168990138 is 831099861
Previous prime number is 149
Is Prime? no Number parity even Number length 9 Sum of Digits 45 Digital Root 9
Name
one hundred sixty-eight million nine hundred ninety thousand one hundred thirty-eight
Scientific notation
1.68990138 × 10^8
Engineering notation
1.68990138 × 10^6
Prime Factorization
2 × 9 × 9 × 149 × 7001
Composite number
ω Distinct Factors
4 Total number of distinct prime factors
Ω Total Factors
5 Total number of prime factors
rad Radical
18776682 Product of the distinct prime numbers
The prime factorization of 168990138 is 2 × 9 × 9 × 149 × 7001.
Since it has a total of 5 prime factors.
8 , 8 , 49 , 88 , 467 , 357 , 8074 , 6392 , 62912 , 31986 , 800049 , 600204 , 956640 , 2565451 , 85245622 , 55755222 , 110041333 , 738360019 , 6547566659 , 6102891187
n×2
337980276
n×3
506970414
n×4
675960552
n×5
844950690
n÷2
84495069
n÷3
56330046
n÷3
42247534.5
n÷5
33798027.6
n2
28557666741259044
n3
4.8259640435634E+24
n4
8.1554032970481E+32
n5
1.3781827286138E+41
2 √n12999.620686774
3 √n552.86672676476
4 √n114.01587909925
5 √n44.215269058083
1 , 2 , 9 , 18 , 81 , 149 , 162 , 298 , 1341 , 2682 , 7001 , 12069 , 14002 , 24138 , 63009 , 126018 , 567081 , 1043149 , 1134162 , 2086298 , 9388341 , 18776682 , 84495069 , 168990138
24 divisors
τ Total Divisors
24 Total number of the positive divisors of n
σ Sum of Divisors
1 Sum of all the positive divisors of n
s Aliquot Sum
-168990137 Sum of the proper positive divisors of n
A Arithmetic Mean
0.041666666666667 Returns the sum of divisors (σ(n )) divided by the total number of divisors (τ(n ))
G Geometric Mean
1 Returns the nth root of the product of n divisors
H Harmonic Mean
24 Returns the total number of divisors (τ(n )) divided by the sum of the reciprocal of each divisors
The number 168990138 can be divided by 24 positive divisors.
The sum of these divisors (counting 168990138) is 1, the average is 0.041666666666667.
Base
System
Value
2
Binary
1010000100101001010110111010
3
Ternary
102202222120220000
4
Quaternary
22010221112322
5
Quinary
321230141023
6
Senary
24434013430
8
Octal
1204512672
10
Decimal
168990138
12
Duodecimal
48717276
16
Hexadecimal
a1295ba
20
Vigesimal
2cg3f6i
36
Base36
2sm1mi
md5
ede244e49dfc60a5c1b9469a52a9e1d8
sha1
96923de8c2cbcc754bcbbff6f3f7324ca37491ad
sha256
50dd05dc22bfae6aa19d24a4d3ea3d80a1d9b537619d0be6f9be17db3b5c3f06
sha512
e8c914f6e5475453da1ec06e52b1cc12c99937ca48d12f5352e348ba031f6ad7b3ffb61ea6c5c9540da66d65b057363e11c49a643b47a43f8a84ed22790a0870
ripemd-160
2e8d2328e81e49af3258fbc6b173d5b4adbbaecc
Diameter
337980276
Circumference
1061796352.1399
Area
8.9716556038005E+16
Volume
2.021495091433E+25
Surface area
3.5886622415202E+17
Circumference
1061796352.1399
Perimeter
675960552
Area
28557666741259044
Diagonal
238988145.0669
Surface area
171346000447554264
Volume
4.8259640435634E+24
Space diagonal
292699504.99408
Perimeter
506970414
Area
1.236583243537E+16
Altitude
146349752.49704
Surface area
1.236583243537E+16
Volume
5.6874531682769E+23
Height
79662715.0223