31361221 is an odd 8-digits composite number following 31361220
and preceding 31361222 . In scientific notation, it is written as 3.1361221 × 10^7.
The sum of its digits is 19. It has a total of 2 prime factors and 4 positive divisors.
There are 31161312 positive integers (up to 31361221) that are relatively prime to 31361221.
31361221 has 4 divisors, whose sum is 31561132
The reverse of 31361221 is 12216313
Previous prime number is 157
Is Prime? no
Number parity odd
Number length 8
Sum of Digits 19
Digital Root 1
Name
thirty-one million three hundred sixty-one thousand two hundred twenty-one
Scientific notation
3.1361221 × 10^7
Engineering notation
3.1361221 × 10^6
Prime Factorization
157 × 199753
Composite number
ω
Distinct Factors
2
Total number of distinct prime factors
Ω
Total Factors
2
Total number of prime factors
rad
Radical
31361221
Product of the distinct prime numbers
The prime factorization of 31361221 is 157 × 199753.
Since it has a total of 2 prime factors.
6 , 4 , 15 , 51 , 596 , 534 , 7353 , 4789 , 25707 , 23001 , 610269 , 477062 , 1333641 , 701918 , 23788564 , 5109199 , 172090429 , 141264638 , 6852107060 , 4325651962
n×2
62722442
n×3
94083663
n×4
125444884
n×5
156806105
n÷2
15680610.5
n÷3
10453740.333333
n÷3
7840305.25
n÷5
6272244.2
n2
983526182610841
n3
3.0844581972145E+22
n4
9.6732375188105E+29
n5
3.0336453961291E+37
2 √n
5600.109016796
3 √n
315.35349917545
4 √n
74.833876131041
5 √n
31.570291548958
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
-31361220
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 31361221 can be divided by 4 positive divisors.
The sum of these divisors (counting 31361221) is 1, the average is 0.25.
Base
System
Value
2
Binary
1110111101000100011000101
3
Ternary
2012000022111201
4
Quaternary
1313220203011
5
Quinary
31012024341
6
Senary
3040102501
8
Octal
167504305
10
Decimal
31361221
12
Duodecimal
a604a31
16
Hexadecimal
1de88c5
20
Vigesimal
9g0311
36
Base36
io6h1
md5
45b554088ee97617e4effeffffc10217
sha1
23e82b447317c779669ad1a3f4dad53f36ea3112
sha256
3deb69211ce30175e0b316fbee2fbf1d65ab51938346af43ce2ce828a44b03d8
sha512
4fd698ca7a33a53a4a60c591632a1fa49c371749e77eaf4da1d66a5dd101af74356276c50902f0a88c980ed4dfd8002a41195b11ed1e6d3706774592ceb10fd8
ripemd-160
0aad94e9672e3950a0e455b1d4312916c630daf0
Diameter
62722442
Circumference
197048363.00241
Area
3.0898386299034E+15
Volume
1.2920148283565E+23
Surface area
1.2359354519614E+16
Circumference
197048363.00241
Perimeter
125444884
Area
983526182610841
Diagonal
44351464.07078
Surface area
5901157095665046
Volume
3.0844581972145E+22
Space diagonal
54319228.159396
Perimeter
94083663
Area
4.2587932971406E+14
Altitude
27159614.079698
Surface area
4.2587932971406E+14
Volume
3.6350688458947E+21
Height
14783821.356927