157201991 is an odd 9-digits composite number following 157201990
and preceding 157201992 . In scientific notation, it is written as 1.57201991 × 10^8.
The sum of its digits is 35. It has a total of 2 prime factors and 4 positive divisors.
There are 148928184 positive integers (up to 157201991) that are relatively prime to 157201991.
157201991 has 4 divisors, whose sum is 165475800
The reverse of 157201991 is 199102751
Previous prime number is 19
Is Prime? no
Number parity odd
Number length 9
Sum of Digits 35
Digital Root 8
Name
one hundred fifty-seven million two hundred one thousand nine hundred ninety-one
Scientific notation
1.57201991 × 10^8
Engineering notation
1.57201991 × 10^6
Prime Factorization
19 × 8273789
Composite number
ω
Distinct Factors
2
Total number of distinct prime factors
Ω
Total Factors
2
Total number of prime factors
rad
Radical
157201991
Product of the distinct prime numbers
The prime factorization of 157201991 is 19 × 8273789.
Since it has a total of 2 prime factors.
1 , 9 , 96 , 69 , 221 , 633 , 1859 , 224 , 49022 , 24138 , 451948 , 443088 , 5256063 , 1527531 , 76342312 , 89520679 , 531747242 , 886375080 , 993995923 , 2461704541
n×2
314403982
n×3
471605973
n×4
628807964
n×5
786009955
n÷2
78600995.5
n÷3
52400663.666667
n÷3
39300497.75
n÷5
31440398.2
n2
24712465974364081
n3
3.8848488536898E+24
n4
6.107059745341E+32
n5
9.6004195112356E+40
2 √n
12538.021813667
3 √n
539.70032641062
4 √n
111.97330848764
5 √n
43.580439774023
4 divisors
τ
Total Divisors
4
Total number of the positive divisors of n
σ
Sum of Divisors
1
Sum of all the positive divisors of n
s
Aliquot Sum
-157201990
Sum of the proper positive divisors of n
A
Arithmetic Mean
0.25
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
4
Returns the total number of divisors (τ(n )) divided by the sum of the reciprocal of each divisors
The number 157201991 can be divided by 4 positive divisors.
The sum of these divisors (counting 157201991) is 1, the average is 0.25.
Base
System
Value
2
Binary
1001010111101011011001000111
3
Ternary
101221210200120222
4
Quaternary
21113223121013
5
Quinary
310220430431
6
Senary
23333214555
8
Octal
1127533107
10
Decimal
157201991
12
Duodecimal
4479145b
16
Hexadecimal
95eb647
20
Vigesimal
292a4jb
36
Base36
2lldtz
md5
9ffebb3bac707e020ef78b4a9dee1f47
sha1
9d1ddca5634de9d67a52286902b03a5bea36da39
sha256
639b7acf9cbc40fc793f50bba26a92874f4c65bce223c22c860fbde78cb9c40a
sha512
67f292aa02d19c4882898e716a3d8b72218b46b079153105eab1f5baad676354256ae1dd58e37cb2cc2e4760c6d448916333507b9eb9d4972b5901575629c8ce
ripemd-160
d33ee33aa5a81fa927ecda863051e84518a3bbef
Diameter
314403982
Circumference
987729240.11058
Area
7.763650155715E+16
Volume
1.6272816825411E+25
Surface area
3.105460062286E+17
Circumference
987729240.11058
Perimeter
628807964
Area
24712465974364081
Diagonal
222317187.70425
Surface area
148274795846184486
Volume
3.8848488536898E+24
Space diagonal
272281835.46299
Perimeter
471605973
Area
1.0700811661979E+16
Altitude
136140917.73149
Surface area
1.0700811661979E+16
Volume
4.5783382805481E+23
Height
74105729.234751