1991569131 is an odd 10-digits composite number following 1991569130
and preceding 1991569132 . In scientific notation, it is written as 1.991569131 × 10^9.
The sum of its digits is 45. It has a total of 4 prime factors and 16 positive divisors.
There are 1299526656 positive integers (up to 1991569131) that are relatively prime to 1991569131.
1991569131 has 16 divisors, whose sum is 2260159200
The reverse of 1991569131 is 1319651991
Previous prime number is 233
Is Prime? no
Number parity odd
Number length 10
Sum of Digits 45
Digital Root 9
Name
one billion nine hundred ninety-one million five hundred sixty-nine thousand one hundred thirty-one
Scientific notation
1.991569131 × 10^9
Engineering notation
1.991569131 × 10^9
Prime Factorization
9 × 59 × 233 × 16097
Composite number
ω
Distinct Factors
4
Total number of distinct prime factors
Ω
Total Factors
4
Total number of prime factors
rad
Radical
1991569131
Product of the distinct prime numbers
The prime factorization of 1991569131 is 9 × 59 × 233 × 16097.
Since it has a total of 4 prime factors.
4 , 4 , 15 , 18 , 646 , 406 , 9330 , 9719 , 15155 , 46606 , 146791 , 520045 , 327137 , 4159648 , 75706655 , 58266362 , 290402564 , 244668298 , 2815226581 , 5036646229
n×2
3983138262
n×3
5974707393
n×4
7966276524
n×5
9957845655
n÷2
995784565.5
n÷3
663856377
n÷3
497892282.75
n÷5
398313826.2
n2
3966347603552095161
n3
7.8992554500502E+27
n4
1.5731913312203E+37
n5
3.1331192924152E+46
2 √n
44627.000022408
3 √n
1258.1481848705
4 √n
211.25103555346
5 √n
72.416757848387
1 , 9 , 59 , 233 , 531 , 2097 , 13747 , 16097 , 123723 , 144873 , 949723 , 3750601 , 8547507 , 33755409 , 221285459 , 1991569131
16 divisors
τ
Total Divisors
16
Total number of the positive divisors of n
σ
Sum of Divisors
1
Sum of all the positive divisors of n
s
Aliquot Sum
-1991569130
Sum of the proper positive divisors of n
A
Arithmetic Mean
0.0625
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
16
Returns the total number of divisors (τ(n )) divided by the sum of the reciprocal of each divisors
The number 1991569131 can be divided by 16 positive divisors.
The sum of these divisors (counting 1991569131) is 1, the average is 0.0625.
Base
System
Value
2
Binary
1110110101101001110111011101011
3
Ternary
12010210111012020200
4
Quaternary
1312231032323223
5
Quinary
13034320203011
6
Senary
525342123243
8
Octal
16655167353
10
Decimal
1991569131
12
Duodecimal
476b80523
16
Hexadecimal
76b4eeeb
20
Vigesimal
1b2762gb
36
Base36
wxq8kr
md5
158b411e1779ac841e14da18c5134525
sha1
0bf59311779a14064a216c6b4d76760e06871786
sha256
376b140f60d7dd6693893be7381c42ebd8af269f0e4f22fb6886a67b23655eb9
sha512
66627fae6fc02aaa6a3ef486e91156501211106f1ee192b561074c34679d1c5fbb18cecab03f9449f160906fbbb44f3458b4b6cb1a8ee14a800b0f854f6502f0
ripemd-160
87b0839c5f440d558afef9a2405e7e968ca0fddf
Diameter
3983138262
Circumference
12513397902.132
Area
1.2460648492903E+19
Volume
3.3088323854276E+28
Surface area
4.9842593971611E+19
Circumference
12513397902.132
Perimeter
7966276524
Area
3966347603552095161
Diagonal
2816504075.4638
Surface area
2.3798085621313E+19
Volume
7.8992554500502E+27
Space diagonal
3449498921.6778
Perimeter
5974707393
Area
1.7174788924578E+18
Altitude
1724749460.8389
Surface area
1.7174788924578E+18
Volume
9.3093618250921E+26
Height
938834691.82127