161878672 is an even 9-digits composite number following 161878671
and preceding 161878673 . In scientific notation, it is written as 1.61878672 × 10^8.
The sum of its digits is 46. It has a total of 6 prime factors and 20 positive divisors.
There are 80887328 positive integers (up to 161878672) that are relatively prime to 161878672.
161878672 has 20 divisors, whose sum is 313841520
The reverse of 161878672 is 276878161
Previous prime number is 3923
Is Prime? no
Number parity even
Number length 9
Sum of Digits 46
Digital Root 1
Name
one hundred sixty-one million eight hundred seventy-eight thousand six hundred seventy-two
Scientific notation
1.61878672 × 10^8
Engineering notation
1.61878672 × 10^6
Prime Factorization
2 × 2 × 2 × 2 × 3923 × 2579
Composite number
ω
Distinct Factors
3
Total number of distinct prime factors
Ω
Total Factors
6
Total number of prime factors
rad
Radical
20234834
Product of the distinct prime numbers
The prime factorization of 161878672 is 2 × 2 × 2 × 2 × 3923 × 2579.
Since it has a total of 6 prime factors.
2 , 9 , 1 , 89 , 181 , 101 , 5539 , 2811 , 64106 , 18327 , 757131 , 144758 , 1930047 , 8095993 , 52433010 , 19235113 , 49977824 , 471746186 , 8891619493 , 7068970954
n×2
323757344
n×3
485636016
n×4
647514688
n×5
809393360
n÷2
80939336
n÷3
53959557.333333
n÷3
40469668
n÷5
32375734.4
n2
26204704448483584
n3
4.241982756273E+24
n4
6.8668653523238E+32
n5
1.111599044037E+41
2 √n
12723.154954649
3 √n
545.00005274527
4 √n
112.79696341058
5 √n
43.836707398856
1 , 2 , 4 , 8 , 16 , 2579 , 3923 , 5158 , 7846 , 10316 , 15692 , 20632 , 31384 , 41264 , 62768 , 10117417 , 20234834 , 40469668 , 80939336 , 161878672
20 divisors
τ
Total Divisors
20
Total number of the positive divisors of n
σ
Sum of Divisors
1
Sum of all the positive divisors of n
s
Aliquot Sum
-161878671
Sum of the proper positive divisors of n
A
Arithmetic Mean
0.05
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
20
Returns the total number of divisors (τ(n )) divided by the sum of the reciprocal of each divisors
The number 161878672 can be divided by 20 positive divisors.
The sum of these divisors (counting 161878672) is 1, the average is 0.05.
Base
System
Value
2
Binary
1001101001100001001010010000
3
Ternary
102021121021210101
4
Quaternary
21221201022100
5
Quinary
312420104142
6
Senary
24021342144
8
Octal
1151411220
10
Decimal
161878672
12
Duodecimal
46267954
16
Hexadecimal
9a61290
20
Vigesimal
2abegdc
36
Base36
2odmds
md5
74cef7a625b793d397e4be95b10c804e
sha1
59ac4910fe125af53bedd528d8077efde6f540f5
sha256
d3518b7854212e670de757d6a57981a62e2b35e4ca3033a1da61bc43e4329136
sha512
38a79b4efa82907f20a76486cd776819200d27bd3a24f88c1a3ca5d3ef47d87dfd41c92f743cfbda226b15a1dda3b204f3bc74de9158ae78d998711ba7ae027c
ripemd-160
dad104dbf98ad42237af0a53ab0bad02364e2b11
Diameter
323757344
Circumference
1017113693.4561
Area
8.2324506984848E+16
Volume
1.7768775818349E+25
Surface area
3.2929802793939E+17
Circumference
1017113693.4561
Perimeter
647514688
Area
26204704448483584
Diagonal
228931013.40135
Surface area
157228226690901504
Volume
4.241982756273E+24
Space diagonal
280382084.56578
Perimeter
485636016
Area
1.1346969875525E+16
Altitude
140191042.28289
Surface area
1.1346969875525E+16
Volume
4.9992246210618E+23
Height
76310337.800449