31386980 is an even 8-digits composite number following 31386979
and preceding 31386981 . In scientific notation, it is written as 3.1386980 × 10^7.
The sum of its digits is 38. It has a total of 4 prime factors and 12 positive divisors.
There are 12554784 positive integers (up to 31386980) that are relatively prime to 31386980.
31386980 has 12 divisors, whose sum is 65912700
The reverse of 31386980 is 08968313
Previous prime number is 5
Is Prime? no
Number parity even
Number length 8
Sum of Digits 38
Digital Root 2
Name
thirty-one million three hundred eighty-six thousand nine hundred eighty
Scientific notation
3.1386980 × 10^7
Engineering notation
3.1386980 × 10^6
Prime Factorization
2 × 2 × 5 × 1569349
Composite number
ω
Distinct Factors
3
Total number of distinct prime factors
Ω
Total Factors
4
Total number of prime factors
rad
Radical
15693490
Product of the distinct prime numbers
The prime factorization of 31386980 is 2 × 2 × 5 × 1569349.
Since it has a total of 4 prime factors.
6 , 10 , 4 , 23 , 447 , 186 , 948 , 6593 , 4356 , 26709 , 445484 , 992854 , 9232549 , 8831014 , 76720865 , 81708377 , 908651322 , 111646373 , 6013860091 , 271164882
n×2
62773960
n×3
94160940
n×4
125547920
n×5
156934900
n÷2
15693490
n÷3
10462326.666667
n÷3
7846745
n÷5
6277396
n2
985142513520400
n3
3.0920648369015E+22
n4
9.7050577194529E+29
n5
3.0461245253931E+37
2 √n
5602.4084106748
3 √n
315.43981562515
4 √n
74.849237876379
5 √n
31.575475990544
1 , 2 , 4 , 5 , 10 , 20 , 1569349 , 3138698 , 6277396 , 7846745 , 15693490 , 31386980
12 divisors
τ
Total Divisors
12
Total number of the positive divisors of n
σ
Sum of Divisors
1
Sum of all the positive divisors of n
s
Aliquot Sum
-31386979
Sum of the proper positive divisors of n
A
Arithmetic Mean
0.083333333333333
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
12
Returns the total number of divisors (τ(n )) divided by the sum of the reciprocal of each divisors
The number 31386980 can be divided by 12 positive divisors.
The sum of these divisors (counting 31386980) is 1, the average is 0.083333333333333.
Base
System
Value
2
Binary
1110111101110110101100100
3
Ternary
2012001121211202
4
Quaternary
1313232311210
5
Quinary
31013340410
6
Senary
3040422032
8
Octal
167566544
10
Decimal
31386980
12
Duodecimal
a617918
16
Hexadecimal
1deed64
20
Vigesimal
9g3790
36
Base36
ioqck
md5
af4ad449ed0c7b0582571da0712845a9
sha1
6827a76833ba8017188b388d1f9fb348f4696664
sha256
535c0a4dc15b2a589c31e6664846c20596c86539c6565e65b3871eb5db81166d
sha512
d11a784cfefad08b721cd4e311892efa4bedc47e753940d8adfc848ccdd84ce8199339e829f58b3f34e85de82ab59dc220d86f2b236861494d0bde9419b193fc
ripemd-160
af6a8141ecf12c1109924f213d028937c8ea44b6
Diameter
62773960
Circumference
197210211.57274
Area
3.0949164832147E+15
Volume
1.2952010901377E+23
Surface area
1.2379665932859E+16
Circumference
197210211.57274
Perimeter
125547920
Area
985142513520400
Diagonal
44387892.797933
Surface area
5910855081122400
Volume
3.0920648369015E+22
Space diagonal
54363844.056148
Perimeter
94160940
Area
4.2657922152836E+14
Altitude
27181922.028074
Surface area
4.2657922152836E+14
Volume
3.6440333567358E+21
Height
14795964.265978