397888921 is an odd 9-digits prime number following 397888920
and preceding 397888922 . In scientific notation, it is written as 3.97888921 × 10^8.
The sum of its digits is 55. It has a total of 1 prime factors and 2 positive divisors.
There are 397888920 positive integers (up to 397888921) that are relatively prime to 397888921.
397888921 has 2 divisors, whose sum is 397888922
The reverse of 397888921 is 129888793
Previous prime number is 1
Is Prime? yes Number parity odd Number length 9 Sum of Digits 55 Digital Root 1
Name
three hundred ninety-seven million eight hundred eighty-eight thousand nine hundred twenty-one
Scientific notation
3.97888921 × 10^8
Engineering notation
3.97888921 × 10^6
Prime Factorization
397888921
Composite number
ω Distinct Factors
1 Total number of distinct prime factors
Ω Total Factors
1 Total number of prime factors
rad Radical
397888921 Product of the distinct prime numbers
The prime factorization of 397888921 is 397888921.
Since it has a total of 1 prime factors.
8 , 3 , 68 , 60 , 441 , 141 , 8917 , 7972 , 10949 , 89540 , 143192 , 630447 , 6527684 , 9640510 , 64372986 , 99033267 , 764985722 , 57058024 , 8390851047 , 8842787843
n×2
795777842
n×3
1193666763
n×4
1591555684
n×5
1989444605
n÷2
198944460.5
n÷3
132629640.33333
n÷3
99472230.25
n÷5
79577784.2
n2
158315593454544241
n3
6.2992020657103E+25
n4
2.5063827130865E+34
n5
9.9726191332302E+42
2 √n19947.153205408
3 √n735.50779908862
4 √n141.2343910151
5 √n52.474990583852
2 divisors
τ Total Divisors
2 Total number of the positive divisors of n
σ Sum of Divisors
397888922 Sum of all the positive divisors of n
s Aliquot Sum
1 Sum of the proper positive divisors of n
A Arithmetic Mean
198944461 Returns the sum of divisors (σ(n )) divided by the total number of divisors (τ(n ))
G Geometric Mean
19947.153230474 Returns the nth root of the product of n divisors
H Harmonic Mean
1.9999999949735 Returns the total number of divisors (τ(n )) divided by the sum of the reciprocal of each divisors
The number 397888921 can be divided by 2 positive divisors.
The sum of these divisors (counting 397888921) is 397888922, the average is 198944461.
Base
System
Value
2
Binary
10111101101110100110110011001
3
Ternary
1000201200211222201
4
Quaternary
113231310312121
5
Quinary
1303324421141
6
Senary
103252050201
8
Octal
2755646631
10
Decimal
397888921
12
Duodecimal
b1303961
16
Hexadecimal
17b74d99
20
Vigesimal
646g261
36
Base36
6kw521
md5
95d7047d556c64c52c8718b7fa3f9324
sha1
da04fe10ac50f3dae46251e9bede4c48e0636a44
sha256
0d8a7f3bca6918e2ad8861f6b4a8f4ef36954004bb75ef3a5d2160896a863f2c
sha512
78767b7c6014753687a5c3bbc63f08c957d597426a94406ff811962464c64c4ebaa2c32245bcdf08caf116d26b031748fd61d8453e95b843f6f3113290787138
ripemd-160
bfcfcbb492a6a2494395c49cd540c265d917282d
Diameter
795777842
Circumference
2500009822.3167
Area
4.973631053455E+17
Volume
2.6386035910818E+26
Surface area
1.989452421382E+18
Circumference
2500009822.3167
Perimeter
1591555684
Area
158315593454544241
Diagonal
562699908.3962
Surface area
949893560727265446
Volume
6.2992020657103E+25
Space diagonal
689163826.94076
Perimeter
1193666763
Area
6.8552662873422E+16
Altitude
344581913.47038
Surface area
6.8552662873422E+16
Volume
7.4236808278801E+24
Height
187566636.13207