231861421 is an odd 9-digits composite number following 231861420
and preceding 231861422 . In scientific notation, it is written as 2.31861421 × 10^8.
The sum of its digits is 28. It has a total of 3 prime factors and 8 positive divisors.
There are 208848240 positive integers (up to 231861421) that are relatively prime to 231861421.
231861421 has 8 divisors, whose sum is 255261600
The reverse of 231861421 is 124168132
Previous prime number is 109
Is Prime? no
Number parity odd
Number length 9
Sum of Digits 28
Digital Root 1
Name
two hundred thirty-one million eight hundred sixty-one thousand four hundred twenty-one
Scientific notation
2.31861421 × 10^8
Engineering notation
2.31861421 × 10^6
Prime Factorization
11 × 109 × 193379
Composite number
ω
Distinct Factors
3
Total number of distinct prime factors
Ω
Total Factors
3
Total number of prime factors
rad
Radical
231861421
Product of the distinct prime numbers
The prime factorization of 231861421 is 11 × 109 × 193379.
Since it has a total of 3 prime factors.
9 , 4 , 96 , 91 , 821 , 991 , 6918 , 5375 , 50899 , 74118 , 294140 , 324209 , 5273772 , 1638087 , 13103054 , 56549605 , 810335403 , 890842419 , 3632667622 , 9994295678
n×2
463722842
n×3
695584263
n×4
927445684
n×5
1159307105
n÷2
115930710.5
n÷3
77287140.333333
n÷3
57965355.25
n÷5
46372284.2
n2
53759718548139241
n3
1.2464804735132E+25
n4
2.8901073383751E+33
n5
6.7010439431819E+41
2 √n
15226.996453667
3 √n
614.34099634597
4 √n
123.39771656586
5 √n
47.102688759276
8 divisors
τ
Total Divisors
8
Total number of the positive divisors of n
σ
Sum of Divisors
1
Sum of all the positive divisors of n
s
Aliquot Sum
-231861420
Sum of the proper positive divisors of n
A
Arithmetic Mean
0.125
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
8
Returns the total number of divisors (τ(n )) divided by the sum of the reciprocal of each divisors
The number 231861421 can be divided by 8 positive divisors.
The sum of these divisors (counting 231861421) is 1, the average is 0.125.
Base
System
Value
2
Binary
1101110100011110110010101101
3
Ternary
121011021210002001
4
Quaternary
31310132302231
5
Quinary
433324031141
6
Senary
35001332301
8
Octal
1564366255
10
Decimal
231861421
12
Duodecimal
65797091
16
Hexadecimal
dd1ecad
20
Vigesimal
3c92db1
36
Base36
3u1lf1
md5
487b9864a2435b86f6a7bdc9f5804202
sha1
6d9e5cbe138b3e32ba04f0111f18e40bb0a07af5
sha256
cb76c8b4723d91e3600d83dbd6d0991a7a863eaa617e3b76eeda1c3630fb752c
sha512
765d2d3b7a47623a4e90729c3170d94559f6a6d94e92ad0c3899f19c0e4d1ebd02a1804e5349ae73053cb888088ead0a2aef1f7e28d0439c9e094cac00067abc
ripemd-160
b78f12db0164fcc10843f0b4f70a84bee68c09ce
Diameter
463722842
Circumference
1456828273.729
Area
1.6889113684989E+17
Volume
5.2212451979094E+25
Surface area
6.7556454739956E+17
Circumference
1456828273.729
Perimeter
927445684
Area
53759718548139241
Diagonal
327901566.1693
Surface area
322558311288835446
Volume
1.2464804735132E+25
Space diagonal
401595761.48712
Perimeter
695584263
Area
2.3278640981495E+16
Altitude
200797880.74356
Surface area
2.3278640981495E+16
Volume
1.4689913257296E+24
Height
109300522.05643