31438861 is an odd 8-digits composite number following 31438860
and preceding 31438862 . In scientific notation, it is written as 3.1438861 × 10^7.
The sum of its digits is 34. It has a total of 2 prime factors and 4 positive divisors.
There are 30071932 positive integers (up to 31438861) that are relatively prime to 31438861.
31438861 has 4 divisors, whose sum is 32805792
The reverse of 31438861 is 16883413
Previous prime number is 23
Is Prime? no
Number parity odd
Number length 8
Sum of Digits 34
Digital Root 7
Name
thirty-one million four hundred thirty-eight thousand eight hundred sixty-one
Scientific notation
3.1438861 × 10^7
Engineering notation
3.1438861 × 10^6
Prime Factorization
23 × 1366907
Composite number
ω
Distinct Factors
2
Total number of distinct prime factors
Ω
Total Factors
2
Total number of prime factors
rad
Radical
31438861
Product of the distinct prime numbers
The prime factorization of 31438861 is 23 × 1366907.
Since it has a total of 2 prime factors.
5 , 7 , 81 , 24 , 972 , 755 , 6435 , 6980 , 74549 , 10294 , 233078 , 139802 , 7090514 , 4497622 , 83588594 , 82688727 , 371366899 , 191746408 , 7589077271 , 1811409484
n×2
62877722
n×3
94316583
n×4
125755444
n×5
157194305
n÷2
15719430.5
n÷3
10479620.333333
n÷3
7859715.25
n÷5
6287772.2
n2
988401980977321
n3
3.1074232492071E+22
n4
9.7693847599989E+29
n5
3.0713832952512E+37
2 √n
5607.0367396692
3 √n
315.61352166864
4 √n
74.880149169651
5 √n
31.585907610418
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
-31438860
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 31438861 can be divided by 4 positive divisors.
The sum of these divisors (counting 31438861) is 1, the average is 0.25.
Base
System
Value
2
Binary
1110111111011100000001101
3
Ternary
2012011021000021
4
Quaternary
1313323200031
5
Quinary
31022020421
6
Senary
3041502141
8
Octal
167734015
10
Decimal
31438861
12
Duodecimal
a641951
16
Hexadecimal
1dfb80d
20
Vigesimal
9g9h31
36
Base36
ipudp
md5
798360c7722f9f114efb4535fe1117f6
sha1
f20a903ac17019c580b66d1f36635c0364d0e534
sha256
976076df30bd21730daf321da470c1aea3c4c727739f466e00104a46c65ba366
sha512
b5ba905b6dca0aee82fb1f00153ae805d1b3f9802d6f9f9cc1f72f02061c1f800ba1b7394cb6fde5a40035f612bf596e285e20fb2f686233e66568104c0a267e
ripemd-160
81056e21097fff00aa16513465755a3231b4a44f
Diameter
62877722
Circumference
197536189.50966
Area
3.105156402232E+15
Volume
1.3016344068404E+23
Surface area
1.2420625608928E+16
Circumference
197536189.50966
Perimeter
125755444
Area
988401980977321
Diagonal
44461263.611763
Surface area
5930411885863926
Volume
3.1074232492071E+22
Space diagonal
54453704.584096
Perimeter
94316583
Area
4.2799061233861E+14
Altitude
27226852.292048
Surface area
4.2799061233861E+14
Volume
3.6621334192184E+21
Height
14820421.203921