166157921 is an odd 9-digits prime number following 166157920
and preceding 166157922 . In scientific notation, it is written as 1.66157921 × 10^8.
The sum of its digits is 38. It has a total of 1 prime factors and 2 positive divisors.
There are 166157920 positive integers (up to 166157921) that are relatively prime to 166157921.
166157921 has 2 divisors, whose sum is 166157922
The reverse of 166157921 is 129751661
Previous prime number is 1
Is Prime? yes Number parity odd Number length 9 Sum of Digits 38 Digital Root 2
Name
one hundred sixty-six million one hundred fifty-seven thousand nine hundred twenty-one
Scientific notation
1.66157921 × 10^8
Engineering notation
1.66157921 × 10^6
Prime Factorization
166157921
Composite number
ω Distinct Factors
1 Total number of distinct prime factors
Ω Total Factors
1 Total number of prime factors
rad Radical
166157921 Product of the distinct prime numbers
The prime factorization of 166157921 is 166157921.
Since it has a total of 1 prime factors.
9 , 8 , 52 , 71 , 72 , 584 , 928 , 3738 , 61557 , 92910 , 56979 , 140396 , 1290503 , 6399354 , 70631905 , 25434059 , 728198495 , 784167512 , 2102962781 , 8990598900
n×2
332315842
n×3
498473763
n×4
664631684
n×5
830789605
n÷2
83078960.5
n÷3
55385973.666667
n÷3
41539480.25
n÷5
33231584.2
n2
27608454711042241
n3
4.5873634368094E+24
n4
7.6222677153167E+32
n5
1.2665001568824E+41
2 √n12890.225793212
3 √n549.76069037983
4 √n113.53513021621
5 √n44.066058829976
2 divisors
τ Total Divisors
2 Total number of the positive divisors of n
σ Sum of Divisors
166157922 Sum of all the positive divisors of n
s Aliquot Sum
1 Sum of the proper positive divisors of n
A Arithmetic Mean
83078961 Returns the sum of divisors (σ(n )) divided by the total number of divisors (τ(n ))
G Geometric Mean
12890.225832002 Returns the nth root of the product of n divisors
H Harmonic Mean
1.9999999879633 Returns the total number of divisors (τ(n )) divided by the sum of the reciprocal of each divisors
The number 166157921 can be divided by 2 positive divisors.
The sum of these divisors (counting 166157921) is 166157922, the average is 83078961.
Base
System
Value
2
Binary
1001111001110101111001100001
3
Ternary
102120122200211002
4
Quaternary
21321311321201
5
Quinary
320014023141
6
Senary
24253201345
8
Octal
1171657141
10
Decimal
166157921
12
Duodecimal
47790255
16
Hexadecimal
9e75e61
20
Vigesimal
2bi9eg1
36
Base36
2qxc9t
md5
73b6b6dc3725d97a2f0e66190b1d9c85
sha1
937b9a2fee59b490d110e3303cfe5c18d7730a59
sha256
2e00e9956d212c27bb834a442e34b32b865b409d7397901147cd73fa58e73954
sha512
2681f02280903d726eb27ff10773e09191130c1fb6ff839ef953bee37e3751a8c67bb6aca61883c72dd31eaaf44027dff5e4b8131b813bca81aefcbf4bdf6678
ripemd-160
35997719ebdc591e84d658db7b7b0387b03641a5
Diameter
332315842
Circumference
1044001007.8987
Area
8.6734518497177E+16
Volume
1.9215503029903E+25
Surface area
3.4693807398871E+17
Circumference
1044001007.8987
Perimeter
664631684
Area
27608454711042241
Diagonal
234982785.37392
Surface area
165650728266253446
Volume
4.5873634368094E+24
Space diagonal
287793961.25202
Perimeter
498473763
Area
1.1954811569497E+16
Altitude
143896980.62601
Surface area
1.1954811569497E+16
Volume
5.4062596565586E+23
Height
78327595.124639