31381421 is an odd 8-digits composite number following 31381420
and preceding 31381422 . In scientific notation, it is written as 3.1381421 × 10^7.
The sum of its digits is 23. It has a total of 2 prime factors and 4 positive divisors.
There are 31356000 positive integers (up to 31381421) that are relatively prime to 31381421.
31381421 has 4 divisors, whose sum is 31406844
The reverse of 31381421 is 12418313
Previous prime number is 1301
Is Prime? no
Number parity odd
Number length 8
Sum of Digits 23
Digital Root 5
Name
thirty-one million three hundred eighty-one thousand four hundred twenty-one
Scientific notation
3.1381421 × 10^7
Engineering notation
3.1381421 × 10^6
Prime Factorization
1301 × 24121
Composite number
ω
Distinct Factors
2
Total number of distinct prime factors
Ω
Total Factors
2
Total number of prime factors
rad
Radical
31381421
Product of the distinct prime numbers
The prime factorization of 31381421 is 1301 × 24121.
Since it has a total of 2 prime factors.
2 , 8 , 39 , 23 , 78 , 757 , 3146 , 1930 , 65192 , 84368 , 987213 , 711065 , 9366654 , 1865750 , 57466305 , 19342397 , 808762448 , 56410305 , 5581502508 , 5368173478
n×2
62762842
n×3
94144263
n×4
125525684
n×5
156907105
n÷2
15690710.5
n÷3
10460473.666667
n÷3
7845355.25
n÷5
6276284.2
n2
984793583979241
n3
3.0904222056951E+22
n4
9.6981840304668E+29
n5
3.0434279599555E+37
2 √n
5601.9122627903
3 √n
315.42119183626
4 √n
74.845923488125
5 √n
31.57435743433
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
-31381420
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 31381421 can be divided by 4 positive divisors.
The sum of these divisors (counting 31381421) is 1, the average is 0.25.
Base
System
Value
2
Binary
1110111101101011110101101
3
Ternary
2012001100012212
4
Quaternary
1313231132231
5
Quinary
31013201141
6
Senary
3040340205
8
Octal
167553655
10
Decimal
31381421
12
Duodecimal
a614665
16
Hexadecimal
1ded7ad
20
Vigesimal
9g2db1
36
Base36
iom25
md5
525e635af260459b99e4412a8f18928b
sha1
4c05530de4fd74448262583cedb04e9acc1a5c64
sha256
19f2575d8c5bb6558d1a1fca6e74ff998ae8723d5fb3eedfbf770c2cd11402e6
sha512
ae95c790a99382462f6f9bc9ccbe3853190b44126027438254b4f6a89f41cc53bf95e99a7eda2ccc3f5ea512d2cb8a28760cab37b9bf305ed3119f42814fe744
ripemd-160
08eb043be9b825f6884f87616ef4698f4dfdb8fa
Diameter
62762842
Circumference
197175283.34562
Area
3.0938202887315E+15
Volume
1.294513026387E+23
Surface area
1.2375281154926E+16
Circumference
197175283.34562
Perimeter
125525684
Area
984793583979241
Diagonal
44380031.18474
Surface area
5908761503875446
Volume
3.0904222056951E+22
Space diagonal
54354215.585709
Perimeter
94144263
Area
4.2642813060497E+14
Altitude
27177107.792854
Surface area
4.2642813060497E+14
Volume
3.6420974972942E+21
Height
14793343.728247