161738642 is an even 9-digits composite number following 161738641
and preceding 161738643 . In scientific notation, it is written as 1.61738642 × 10^8.
The sum of its digits is 38. It has a total of 4 prime factors and 16 positive divisors.
There are 74547840 positive integers (up to 161738642) that are relatively prime to 161738642.
161738642 has 16 divisors, whose sum is 261622872
The reverse of 161738642 is 246837161
Previous prime number is 821
Is Prime? no Number parity even Number length 9 Sum of Digits 38 Digital Root 2
Name
one hundred sixty-one million seven hundred thirty-eight thousand six hundred forty-two
Scientific notation
1.61738642 × 10^8
Engineering notation
1.61738642 × 10^6
Prime Factorization
2 × 13 × 821 × 7577
Composite number
ω Distinct Factors
4 Total number of distinct prime factors
Ω Total Factors
4 Total number of prime factors
rad Radical
161738642 Product of the distinct prime numbers
The prime factorization of 161738642 is 2 × 13 × 821 × 7577.
Since it has a total of 4 prime factors.
8 , 1 , 62 , 78 , 869 , 429 , 4200 , 9274 , 68482 , 10510 , 874042 , 132176 , 6215716 , 3001700 , 48344941 , 71724599 , 316108155 , 408993285 , 4813398668 , 2505064070
n×2
323477284
n×3
485215926
n×4
646954568
n×5
808693210
n÷2
80869321
n÷3
53912880.666667
n÷3
40434660.5
n÷5
32347728.4
n2
26159388316004164
n3
4.2309839417812E+24
n4
6.843135970675E+32
n5
1.1067995189183E+41
2 √n12717.650805082
3 √n544.84286017557
4 √n112.77256228836
5 √n43.829120754927
1 , 2 , 13 , 26 , 821 , 1642 , 7577 , 10673 , 15154 , 21346 , 98501 , 197002 , 6220717 , 12441434 , 80869321 , 161738642
16 divisors
τ Total Divisors
16 Total number of the positive divisors of n
σ Sum of Divisors
1 Sum of all the positive divisors of n
s Aliquot Sum
-161738641 Sum of the proper positive divisors of n
A Arithmetic Mean
0.0625 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
16 Returns the total number of divisors (τ(n )) divided by the sum of the reciprocal of each divisors
The number 161738642 can be divided by 16 positive divisors.
The sum of these divisors (counting 161738642) is 1, the average is 0.0625.
Base
System
Value
2
Binary
1001101000111110111110010010
3
Ternary
102021100011201002
4
Quaternary
21220332332102
5
Quinary
312401114032
6
Senary
24014342002
8
Octal
1150767622
10
Decimal
161738642
12
Duodecimal
461ba902
16
Hexadecimal
9a3ef92
20
Vigesimal
2aah6c2
36
Base36
2oamc2
md5
0a54d734eb04f71105d8aec89b4bf540
sha1
0e81ac23eac895dc931c801e0143a83e88a3c2aa
sha256
6cf6f6454ce3de6659a3f9f08a9896aad48e8f39eb9930d265ec1d76235e8d57
sha512
393135f3d121ad384d463a0647b9478e76190659660037e7b6a7d40cb2be90a3f10085a61c066495702788ab43b7d8323e4812277c6f4d5991570dfd7f386595
ripemd-160
e517ab0a5ee62f454aebd19991c420ccf445fcc6
Diameter
323477284
Circumference
1016233859.0176
Area
8.2182142155961E+16
Volume
1.7722704091942E+25
Surface area
3.2872856862385E+17
Circumference
1016233859.0176
Perimeter
646954568
Area
26159388316004164
Diagonal
228732981.07621
Surface area
156956329896024984
Volume
4.2309839417812E+24
Space diagonal
280139545.49119
Perimeter
485215926
Area
1.1327347414561E+16
Altitude
140069772.7456
Surface area
1.1327347414561E+16
Volume
4.9862623938748E+23
Height
76244327.025402