31158021 is an odd 8-digits composite number following 31158020
and preceding 31158022 . In scientific notation, it is written as 3.1158021 × 10^7.
The sum of its digits is 21. It has a total of 3 prime factors and 8 positive divisors.
There are 20662880 positive integers (up to 31158021) that are relatively prime to 31158021.
31158021 has 8 divisors, whose sum is 41762304
The reverse of 31158021 is 12085113
Previous prime number is 191
Is Prime? no
Number parity odd
Number length 8
Sum of Digits 21
Digital Root 3
Name
thirty-one million one hundred fifty-eight thousand twenty-one
Scientific notation
3.1158021 × 10^7
Engineering notation
3.1158021 × 10^6
Prime Factorization
3 × 191 × 54377
Composite number
ω
Distinct Factors
3
Total number of distinct prime factors
Ω
Total Factors
3
Total number of prime factors
rad
Radical
31158021
Product of the distinct prime numbers
The prime factorization of 31158021 is 3 × 191 × 54377.
Since it has a total of 3 prime factors.
5 , 5 , 4 , 57 , 454 , 663 , 6041 , 2083 , 37704 , 37033 , 768655 , 800989 , 7087570 , 7632362 , 18504279 , 74133515 , 867118539 , 404034600 , 6333741295 , 4509871825
n×2
62316042
n×3
93474063
n×4
124632084
n×5
155790105
n÷2
15579010.5
n÷3
10386007
n÷3
7789505.25
n÷5
6231604.2
n2
970822272636441
n3
3.0248900758074E+22
n4
9.4249588504698E+29
n5
2.9366306578708E+37
2 √n
5581.9370293833
3 √n
314.67092870935
4 √n
74.712361958268
5 √n
31.529274176742
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
-31158020
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 31158021 can be divided by 8 positive divisors.
The sum of these divisors (counting 31158021) is 1, the average is 0.125.
Base
System
Value
2
Binary
1110110110110111100000101
3
Ternary
2011121222202210
4
Quaternary
1312312330011
5
Quinary
30434024041
6
Senary
3031454033
8
Octal
166667405
10
Decimal
31158021
12
Duodecimal
a527319
16
Hexadecimal
1db6f05
20
Vigesimal
9eef11
36
Base36
ijtol
md5
d7d2a349861937094eab57b886a56297
sha1
43ddb16ac1ca3f9f6094d60603ad491b9ed794e1
sha256
1a55bf85c1aa071e48445c41c73c2b87851ae0d6d6951a52bc5545168ea420fb
sha512
cb59742be38a351ec2b5b1fc3ad5815658270f4c182b82105268a0df0f5e2c087d77179cdc6fdf23c6a60aa7905fab10d6ada88a70412c947e14cb21d94ddc1b
ripemd-160
a3136b3f06063afd02ed5858246cff0140d6e012
Diameter
62316042
Circumference
195771619.74799
Area
3.049928119656E+15
Volume
1.2670629920098E+23
Surface area
1.2199712478624E+16
Circumference
195771619.74799
Perimeter
124632084
Area
970822272636441
Diagonal
44064095.874906
Surface area
5824933635818646
Volume
3.0248900758074E+22
Space diagonal
53967275.435298
Perimeter
93474063
Area
4.2037837533145E+14
Altitude
26983637.717649
Surface area
4.2037837533145E+14
Volume
3.5648671415788E+21
Height
14688031.958302