31121489 is an odd 8-digits composite number following 31121488
and preceding 31121490 . In scientific notation, it is written as 3.1121489 × 10^7.
The sum of its digits is 29. It has a total of 4 prime factors and 16 positive divisors.
There are 25634880 positive integers (up to 31121489) that are relatively prime to 31121489.
31121489 has 16 divisors, whose sum is 36971520
The reverse of 31121489 is 98412113
Previous prime number is 829
Is Prime? no
Number parity odd
Number length 8
Sum of Digits 29
Digital Root 2
Name
thirty-one million one hundred twenty-one thousand four hundred eighty-nine
Scientific notation
3.1121489 × 10^7
Engineering notation
3.1121489 × 10^6
Prime Factorization
7 × 31 × 829 × 173
Composite number
ω
Distinct Factors
4
Total number of distinct prime factors
Ω
Total Factors
4
Total number of prime factors
rad
Radical
31121489
Product of the distinct prime numbers
The prime factorization of 31121489 is 7 × 31 × 829 × 173.
Since it has a total of 4 prime factors.
5 , 9 , 2 , 96 , 350 , 267 , 5229 , 7983 , 57816 , 95356 , 550478 , 578576 , 7493756 , 1342266 , 99412059 , 36834672 , 681701269 , 670567025 , 1107665061 , 2344278034
n×2
62242978
n×3
93364467
n×4
124485956
n×5
155607445
n÷2
15560744.5
n÷3
10373829.666667
n÷3
7780372.25
n÷5
6224297.8
n2
968547077577121
n3
3.0142627220799E+22
n4
9.3808344148318E+29
n5
2.9194553505201E+37
2 √n
5578.6637288871
3 √n
314.54789935041
4 √n
74.690452729161
5 √n
31.521877249831
1 , 7 , 31 , 173 , 217 , 829 , 1211 , 5363 , 5803 , 25699 , 37541 , 143417 , 179893 , 1003919 , 4445927 , 31121489
16 divisors
τ
Total Divisors
16
Total number of the positive divisors of n
σ
Sum of Divisors
1
Sum of all the positive divisors of n
s
Aliquot Sum
-31121488
Sum of the proper positive divisors of n
A
Arithmetic Mean
0.0625
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
16
Returns the total number of divisors (τ(n )) divided by the sum of the reciprocal of each divisors
The number 31121489 can be divided by 16 positive divisors.
The sum of these divisors (counting 31121489) is 1, the average is 0.0625.
Base
System
Value
2
Binary
1110110101110000001010001
3
Ternary
2011120010122202
4
Quaternary
1312232001101
5
Quinary
30431341424
6
Senary
3031012545
8
Octal
166560121
10
Decimal
31121489
12
Duodecimal
a50a155
16
Hexadecimal
1dae051
20
Vigesimal
9ea3e9
36
Base36
ij1ht
md5
3dfb41e9a795c2cc1aa6cd7d774e2778
sha1
571491c5dfad406ad86528efb3e20d9db4dace2a
sha256
fab03afa6e608481cfac980a7b431c16d915864ef635c3fadd03c4b0ce87a0cd
sha512
59942acbd6929a2c71694c7b30a916a88d9eb81092b8a0547b35d39289a965f949260e881c3dbe5614efe21829991c6cb118fd29c5ce4668cdea01325e5079a8
ripemd-160
f648bfe3a0d807ea24c654313fdabadb9349dacf
Diameter
62242978
Circumference
195542082.42235
Area
3.0427803835721E+15
Volume
1.2626114164901E+23
Surface area
1.2171121534289E+16
Circumference
195542082.42235
Perimeter
124485956
Area
968547077577121
Diagonal
44012431.825045
Surface area
5811282465462726
Volume
3.0142627220799E+22
Space diagonal
53904000.155196
Perimeter
93364467
Area
4.1939318697148E+14
Altitude
26952000.077598
Surface area
4.1939318697148E+14
Volume
3.5523426851008E+21
Height
14670810.608348