157189861 is an odd 9-digits composite number following 157189860
and preceding 157189862 . In scientific notation, it is written as 1.57189861 × 10^8.
The sum of its digits is 46. It has a total of 2 prime factors and 4 positive divisors.
There are 157109152 positive integers (up to 157189861) that are relatively prime to 157189861.
157189861 has 4 divisors, whose sum is 157270572
The reverse of 157189861 is 168981751
Previous prime number is 1997
Is Prime? no
Number parity odd
Number length 9
Sum of Digits 46
Digital Root 1
Name
one hundred fifty-seven million one hundred eighty-nine thousand eight hundred sixty-one
Scientific notation
1.57189861 × 10^8
Engineering notation
1.57189861 × 10^6
Prime Factorization
1997 × 78713
Composite number
ω
Distinct Factors
2
Total number of distinct prime factors
Ω
Total Factors
2
Total number of prime factors
rad
Radical
157189861
Product of the distinct prime numbers
The prime factorization of 157189861 is 1997 × 78713.
Since it has a total of 2 prime factors.
5 , 6 , 42 , 94 , 809 , 396 , 4491 , 946 , 81306 , 78943 , 469118 , 230341 , 8487535 , 748339 , 62927919 , 68323614 , 597635836 , 195370524 , 5920214281 , 3275758528
n×2
314379722
n×3
471569583
n×4
628759444
n×5
785949305
n÷2
78594930.5
n÷3
52396620.333333
n÷3
39297465.25
n÷5
31437972.2
n2
24708652401199321
n3
3.8839496364418E+24
n4
6.1051750348329E+32
n5
9.5967161510606E+40
2 √n
12537.538075715
3 √n
539.68644462429
4 √n
111.97114840759
5 √n
43.579767203596
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
-157189860
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 157189861 can be divided by 4 positive divisors.
The sum of these divisors (counting 157189861) is 1, the average is 0.25.
Base
System
Value
2
Binary
1001010111101000011011100101
3
Ternary
101221210001221201
4
Quaternary
21113220123211
5
Quinary
310220033421
6
Senary
23333042501
8
Octal
1127503345
10
Decimal
157189861
12
Duodecimal
44786431
16
Hexadecimal
95e86e5
20
Vigesimal
2928ed1
36
Base36
2ll4h1
md5
9a31e2962bd596f2e3a713d19dbe9652
sha1
7fd4c9bfcc717831afa60178f99ec0bb0a39c6b0
sha256
69042b2f724e3658569f74ba729e76a58730d9852e5472932fc04a8ecd7f7949
sha512
d5576a5790429a836feb97f834ef65f1d65ba2b9ce5aa98bc09c936f7b06f8d31910789f05a65efc4e3660929539f5ea4b0630022b9b407530a58342f55009c5
ripemd-160
2572f4ffe1625112c4da8b3a2009cedd51dae6b1
Diameter
314379722
Circumference
987653025.0728
Area
7.7624520863712E+16
Volume
1.6269050193011E+25
Surface area
3.1049808345485E+17
Circumference
987653025.0728
Perimeter
628759444
Area
24708652401199321
Diagonal
222300033.29374
Surface area
148251914407195926
Volume
3.8839496364418E+24
Space diagonal
272260825.68669
Perimeter
471569583
Area
1.0699160336359E+16
Altitude
136130412.84334
Surface area
1.0699160336359E+16
Volume
4.5772785428584E+23
Height
74100011.097914