31361681 is an odd 8-digits composite number following 31361680
and preceding 31361682 . In scientific notation, it is written as 3.1361681 × 10^7.
The sum of its digits is 29. It has a total of 3 prime factors and 8 positive divisors.
There are 27869184 positive integers (up to 31361681) that are relatively prime to 31361681.
31361681 has 8 divisors, whose sum is 34074600
The reverse of 31361681 is 18616313
Previous prime number is 13
Is Prime? no
Number parity odd
Number length 8
Sum of Digits 29
Digital Root 2
Name
thirty-one million three hundred sixty-one thousand six hundred eighty-one
Scientific notation
3.1361681 × 10^7
Engineering notation
3.1361681 × 10^6
Prime Factorization
21349 × 13 × 113
Composite number
ω
Distinct Factors
3
Total number of distinct prime factors
Ω
Total Factors
3
Total number of prime factors
rad
Radical
31361681
Product of the distinct prime numbers
The prime factorization of 31361681 is 21349 × 13 × 113.
Since it has a total of 3 prime factors.
6 , 5 , 11 , 45 , 784 , 608 , 6713 , 766 , 27164 , 57280 , 404878 , 795117 , 1489436 , 3024223 , 43557195 , 31527384 , 221094371 , 985136802 , 9846493454 , 7358877740
n×2
62723362
n×3
94085043
n×4
125446724
n×5
156808405
n÷2
15680840.5
n÷3
10453893.666667
n÷3
7840420.25
n÷5
6272336.2
n2
983555035145761
n3
3.0845939258185E+22
n4
9.6738050716058E+29
n5
3.0338678871188E+37
2 √n
5600.1500872744
3 √n
315.35504101487
4 √n
74.834150541544
5 √n
31.570384161735
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
-31361680
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 31361681 can be divided by 8 positive divisors.
The sum of these divisors (counting 31361681) is 1, the average is 0.125.
Base
System
Value
2
Binary
1110111101000101010010001
3
Ternary
2012000100010202
4
Quaternary
1313220222101
5
Quinary
31012033211
6
Senary
3040104545
8
Octal
167505221
10
Decimal
31361681
12
Duodecimal
a605155
16
Hexadecimal
1de8a91
20
Vigesimal
9g0441
36
Base36
io6tt
md5
16502148cbdcaf8febd3ddb24bd71a7e
sha1
de5e2131f48440c27ebbf008f5d95ac391290d66
sha256
826f38da7296f48b98b617215e8c4c1db0aecbc326ecb02eaaf51bf5d1ff45fd
sha512
ddd0f288f7418cbae57bf84e4ba13bf1a8a57f301f0b3ea5d4ecc370ac2b587e609e09aa3a62d8707b0a295243fa2e9d729ee6feaf7a0db5c2529a0d3e482cac
ripemd-160
3ffbea4a6a42b3cb6cf928903475c624759a1090
Diameter
62723362
Circumference
197051253.26765
Area
3.0899292728152E+15
Volume
1.2920716822212E+23
Surface area
1.2359717091261E+16
Circumference
197051253.26765
Perimeter
125446724
Area
983555035145761
Diagonal
44352114.609019
Surface area
5901330210874566
Volume
3.0845939258185E+22
Space diagonal
54320024.902768
Perimeter
94085043
Area
4.2589182322816E+14
Altitude
27160012.451384
Surface area
4.2589182322816E+14
Volume
3.6352288035885E+21
Height
14784038.203006