31381930 is an even 8-digits composite number following 31381929
and preceding 31381931 . In scientific notation, it is written as 3.1381930 × 10^7.
The sum of its digits is 28. It has a total of 3 prime factors and 8 positive divisors.
There are 12552768 positive integers (up to 31381930) that are relatively prime to 31381930.
31381930 has 8 divisors, whose sum is 56487492
The reverse of 31381930 is 03918313
Previous prime number is 5
Is Prime? no
Number parity even
Number length 8
Sum of Digits 28
Digital Root 1
Name
thirty-one million three hundred eighty-one thousand nine hundred thirty
Scientific notation
3.1381930 × 10^7
Engineering notation
3.1381930 × 10^6
Prime Factorization
2 × 5 × 3138193
Composite number
ω
Distinct Factors
3
Total number of distinct prime factors
Ω
Total Factors
3
Total number of prime factors
rad
Radical
31381930
Product of the distinct prime numbers
The prime factorization of 31381930 is 2 × 5 × 3138193.
Since it has a total of 3 prime factors.
3 , 9 , 73 , 26 , 631 , 83 , 8097 , 3319 , 10662 , 91169 , 438426 , 338082 , 4238189 , 1629335 , 86607456 , 19332073 , 991671838 , 886906280 , 1110436735 , 9480309627
n×2
62763860
n×3
94145790
n×4
125527720
n×5
156909650
n÷2
15690965
n÷3
10460643.333333
n÷3
7845482.5
n÷5
6276386
n2
984825530524900
n3
3.0905725861145E+22
n4
9.6988132557365E+29
n5
3.043674786746E+37
2 √n
5601.9576935211
3 √n
315.422897182
4 √n
74.846226982535
5 √n
31.574459859544
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
-31381929
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 31381930 can be divided by 8 positive divisors.
The sum of these divisors (counting 31381930) is 1, the average is 0.125.
Base
System
Value
2
Binary
1110111101101100110101010
3
Ternary
2012001100220201
4
Quaternary
1313231212222
5
Quinary
31013210210
6
Senary
3040342414
8
Octal
167554652
10
Decimal
31381930
12
Duodecimal
a614a0a
16
Hexadecimal
1ded9aa
20
Vigesimal
9g2ega
36
Base36
iomga
md5
aadbc9fba307beab0753111573519c88
sha1
2038d428efe4dd4d65cf3455783d1e1b25adee76
sha256
2a3fa58e78aefd3ae1e8cbb50e9ca2094bb11dbb6889af2805728888779391af
sha512
1c77ec3c001d6e2249fd9f8888730e87bbf936a1f1a65fc8ed13799d3dd6e0291665032ecb743b2f4d3ba52618d9e3a56736de33b1e407797594eaf06e5db1f7
ripemd-160
74d65577de7d8ed2f742f2284727d00fbd7aafef
Diameter
62763860
Circumference
197178481.48694
Area
3.0939206517647E+15
Volume
1.2945760175898E+23
Surface area
1.2375682607059E+16
Circumference
197178481.48694
Perimeter
125527720
Area
984825530524900
Diagonal
44380751.019443
Surface area
5908953183149400
Volume
3.0905725861145E+22
Space diagonal
54355097.19957
Perimeter
94145790
Area
4.2644196386503E+14
Altitude
27177548.599785
Surface area
4.2644196386503E+14
Volume
3.642274722318E+21
Height
14793583.673148