161856227 is an odd 9-digits composite number following 161856226
and preceding 161856228 . In scientific notation, it is written as 1.61856227 × 10^8.
The sum of its digits is 38. It has a total of 4 prime factors and 16 positive divisors.
There are 146768544 positive integers (up to 161856227) that are relatively prime to 161856227.
161856227 has 16 divisors, whose sum is 177408000
The reverse of 161856227 is 722658161
Previous prime number is 439
Is Prime? no
Number parity odd
Number length 9
Sum of Digits 38
Digital Root 2
Name
one hundred sixty-one million eight hundred fifty-six thousand two hundred twenty-seven
Scientific notation
1.61856227 × 10^8
Engineering notation
1.61856227 × 10^6
Prime Factorization
13 × 79 × 439 × 359
Composite number
ω
Distinct Factors
4
Total number of distinct prime factors
Ω
Total Factors
4
Total number of prime factors
rad
Radical
161856227
Product of the distinct prime numbers
The prime factorization of 161856227 is 13 × 79 × 439 × 359.
Since it has a total of 4 prime factors.
6 , 4 , 23 , 95 , 638 , 389 , 4231 , 9442 , 7604 , 76501 , 82227 , 158382 , 9243024 , 438197 , 41936096 , 3434763 , 719625461 , 256594163 , 977023195 , 6684629357
n×2
323712454
n×3
485568681
n×4
647424908
n×5
809281135
n÷2
80928113.5
n÷3
53952075.666667
n÷3
40464056.75
n÷5
32371245.4
n2
26197438218675529
n3
4.2402185071404E+24
n4
6.8630576922132E+32
n5
1.110828623745E+41
2 √n
12722.272870836
3 √n
544.9748629093
4 √n
112.79305329157
5 √n
43.835491711256
1 , 13 , 79 , 359 , 439 , 1027 , 4667 , 5707 , 28361 , 34681 , 157601 , 368693 , 450853 , 2048813 , 12450479 , 161856227
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
-161856226
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 161856227 can be divided by 16 positive divisors.
The sum of these divisors (counting 161856227) is 1, the average is 0.0625.
Base
System
Value
2
Binary
1001101001011011101011100011
3
Ternary
102021120011000002
4
Quaternary
21221123223203
5
Quinary
312413344402
6
Senary
24021050215
8
Octal
1151335343
10
Decimal
161856227
12
Duodecimal
4625696b
16
Hexadecimal
9a5bae3
20
Vigesimal
2abc0b7
36
Base36
2od52b
md5
32522be2823ec0db88b20fd44d96ff80
sha1
70a0987eb5d32a594ba6d7e8061de0a6a1a31b36
sha256
44dde9c1a243deb12a2bc2b5077273eb3e66b2dc8822096100314500decf130a
sha512
0c8eeeccb1b67c53c57d87e2931f44b0a2dd61da1bbc9fe58bc739d21459a5aa724300935b4cc6536879ba15ea2c6dc2696e693c2a5d5db8950d693779b42cfc
ripemd-160
a8abf740693a2fee623c2807269fa67c66d3ddb2
Diameter
323712454
Circumference
1016972667.3619
Area
8.2301679450664E+16
Volume
1.7761385748864E+25
Surface area
3.2920671780265E+17
Circumference
1016972667.3619
Perimeter
647424908
Area
26197438218675529
Diagonal
228899271.37794
Surface area
157184629312053174
Volume
4.2402185071404E+24
Space diagonal
280343208.6854
Perimeter
485568681
Area
1.1343823505723E+16
Altitude
140171604.3427
Surface area
1.1343823505723E+16
Volume
4.9971454335195E+23
Height
76299757.125979