231497891 is an odd 9-digits composite number following 231497890
and preceding 231497892 . In scientific notation, it is written as 2.31497891 × 10^8.
The sum of its digits is 44. It has a total of 2 prime factors and 4 positive divisors.
There are 217880352 positive integers (up to 231497891) that are relatively prime to 231497891.
231497891 has 4 divisors, whose sum is 245115432
The reverse of 231497891 is 198794132
Previous prime number is 17
Is Prime? no
Number parity odd
Number length 9
Sum of Digits 44
Digital Root 8
Name
two hundred thirty-one million four hundred ninety-seven thousand eight hundred ninety-one
Scientific notation
2.31497891 × 10^8
Engineering notation
2.31497891 × 10^6
Prime Factorization
17 × 13617523
Composite number
ω
Distinct Factors
2
Total number of distinct prime factors
Ω
Total Factors
2
Total number of prime factors
rad
Radical
231497891
Product of the distinct prime numbers
The prime factorization of 231497891 is 17 × 13617523.
Since it has a total of 2 prime factors.
3 , 3 , 17 , 91 , 396 , 167 , 241 , 2920 , 42481 , 57677 , 382643 , 241987 , 7026760 , 5363831 , 36149321 , 64427005 , 537299802 , 672017864 , 2221052700 , 1572611472
n×2
462995782
n×3
694493673
n×4
925991564
n×5
1157489455
n÷2
115748945.5
n÷3
77165963.666667
n÷3
57874472.75
n÷5
46299578.2
n2
53591273537447881
n3
1.2406266799923E+25
n4
2.8720245993656E+33
n5
6.6486763765325E+41
2 √n
15215.054748505
3 √n
614.01975819452
4 √n
123.34932001639
5 √n
47.087909250609
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
-231497890
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 231497891 can be divided by 4 positive divisors.
The sum of these divisors (counting 231497891) is 1, the average is 0.25.
Base
System
Value
2
Binary
1101110011000110000010100011
3
Ternary
121010121022101222
4
Quaternary
31303012002203
5
Quinary
433230413031
6
Senary
34545445255
8
Octal
1563060243
10
Decimal
231497891
12
Duodecimal
6564082b
16
Hexadecimal
dcc60a3
20
Vigesimal
3c6h4eb
36
Base36
3ttswz
md5
003f8a7a0feecc90cb9e40f7459616f5
sha1
d0ab4cb91676f6efbc2b759339896b5210d18c28
sha256
56f9ea50fedc377d5c7045cff908c40715afc7a0bf726f5777e3a954faf7fefd
sha512
07437abcc2ac0b3fc985f765d044b5e2d4b0a2b56b6214365658c153dbf5f140896d3de1fac855d763a2812c30104b457c7d0fdaf1b0d4f6b6e154d0165990b2
ripemd-160
02a8dc8dd3ab6f9bc7430800efe7945f836831bc
Diameter
462995782
Circumference
1454544147.3743
Area
1.6836195124177E+17
Volume
5.1967248849485E+25
Surface area
6.7344780496707E+17
Circumference
1454544147.3743
Perimeter
925991564
Area
53591273537447881
Diagonal
327387457.11297
Surface area
321547641224687286
Volume
1.2406266799923E+25
Space diagonal
400966109.05704
Perimeter
694493673
Area
2.3205702152295E+16
Altitude
200483054.52852
Surface area
2.3205702152295E+16
Volume
1.4620925639059E+24
Height
109129152.37099