161639904 is an even 9-digits composite number following 161639903
and preceding 161639905 . In scientific notation, it is written as 1.61639904 × 10^8.
The sum of its digits is 39. It has a total of 7 prime factors and 24 positive divisors.
There are 53879936 positive integers (up to 161639904) that are relatively prime to 161639904.
161639904 has 24 divisors, whose sum is 424305000
The reverse of 161639904 is 409936161
Previous prime number is 3
Is Prime? no Number parity even Number length 9 Sum of Digits 39 Digital Root 3
Name
one hundred sixty-one million six hundred thirty-nine thousand nine hundred four
Scientific notation
1.61639904 × 10^8
Engineering notation
1.61639904 × 10^6
Prime Factorization
2 × 2 × 2 × 2 × 2 × 3 × 1683749
Composite number
ω Distinct Factors
3 Total number of distinct prime factors
Ω Total Factors
7 Total number of prime factors
rad Radical
10102494 Product of the distinct prime numbers
The prime factorization of 161639904 is 2 × 2 × 2 × 2 × 2 × 3 × 1683749.
Since it has a total of 7 prime factors.
3 , 9 , 89 , 64 , 11 , 928 , 5045 , 110 , 41299 , 35449 , 701687 , 414757 , 7000642 , 3702190 , 72633793 , 51389366 , 961644571 , 74283089 , 5054193618 , 1442771547
n×2
323279808
n×3
484919712
n×4
646559616
n×5
808199520
n÷2
80819952
n÷3
53879968
n÷3
40409976
n÷5
32327980.8
n2
26127458565129216
n3
4.2232398942315E+24
n4
6.8264409107254E+32
n5
1.1034252534713E+41
2 √n12713.768284816
3 √n544.73196594807
4 √n112.75534703426
5 √n43.823768098541
1 , 2 , 3 , 4 , 6 , 8 , 12 , 16 , 24 , 32 , 48 , 96 , 1683749 , 3367498 , 5051247 , 6734996 , 10102494 , 13469992 , 20204988 , 26939984 , 40409976 , 53879968 , 80819952 , 161639904
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
-161639903 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 161639904 can be divided by 24 positive divisors.
The sum of these divisors (counting 161639904) is 1, the average is 0.041666666666667.
Base
System
Value
2
Binary
1001101000100110110111100000
3
Ternary
102021011011021010
4
Quaternary
21220212313200
5
Quinary
312334434104
6
Senary
24012300520
8
Octal
1150466740
10
Decimal
161639904
12
Duodecimal
46171740
16
Hexadecimal
9a26de0
20
Vigesimal
2aa4jf4
36
Base36
2o8i5c
md5
dc2beda57e20d907e3657cdeeaa2d591
sha1
fe00b9ffe18346bd76e6ff6a23574616bda27c85
sha256
a45e6cede51cccb0cd4d48d223d69b5675022a4cad4c74d6484c8f881ee07bfd
sha512
5a85f2087a85c2ed6cb4cee1ea48e76aa9557cb3f977586a958c8f3c3d647882994a942d3ecd8150559e221387d593345ec09d9c938dd9fdc451b67054774379
ripemd-160
ea8ba04f2a7bec640b5498d59aeee69c78e6e1b9
Diameter
323279808
Circumference
1015613469.8667
Area
8.2081831885182E+16
Volume
1.769026590142E+25
Surface area
3.2832732754073E+17
Circumference
1015613469.8667
Perimeter
646559616
Area
26127458565129216
Diagonal
228593344.45749
Surface area
156764751390775296
Volume
4.2232398942315E+24
Space diagonal
279968526.25856
Perimeter
484919712
Area
1.1313521426864E+16
Altitude
139984263.12928
Surface area
1.1313521426864E+16
Volume
4.9771359463144E+23
Height
76197781.485828