31390290 is an even 8-digits composite number following 31390289
and preceding 31390291 . In scientific notation, it is written as 3.1390290 × 10^7.
The sum of its digits is 27. It has a total of 4 prime factors and 16 positive divisors.
There are 8100000 positive integers (up to 31390290) that are relatively prime to 31390290.
31390290 has 16 divisors, whose sum is 49688832
The reverse of 31390290 is 09209313
Previous prime number is 31
Is Prime? no
Number parity even
Number length 8
Sum of Digits 27
Digital Root 9
Name
thirty-one million three hundred ninety thousand two hundred ninety
Scientific notation
3.1390290 × 10^7
Engineering notation
3.1390290 × 10^6
Prime Factorization
2 × 45 × 31 × 11251
Composite number
ω
Distinct Factors
4
Total number of distinct prime factors
Ω
Total Factors
4
Total number of prime factors
rad
Radical
31390290
Product of the distinct prime numbers
The prime factorization of 31390290 is 2 × 45 × 31 × 11251.
Since it has a total of 4 prime factors.
4 , 10 , 85 , 92 , 805 , 560 , 692 , 2503 , 14853 , 59131 , 196013 , 703359 , 1715280 , 9786144 , 59974231 , 64276151 , 943412603 , 809966054 , 3214701233 , 5680454344
n×2
62780580
n×3
94170870
n×4
125561160
n×5
156951450
n÷2
15695145
n÷3
10463430
n÷3
7847572.5
n÷5
6278058
n2
985350306284100
n3
3.0930431865847E+22
n4
9.7091522609417E+29
n5
3.0477310512512E+37
2 √n
5602.7038115538
3 √n
315.45090375882
4 √n
74.851211156225
5 √n
31.576141938126
1 , 2 , 31 , 45 , 62 , 90 , 1395 , 2790 , 11251 , 22502 , 348781 , 506295 , 697562 , 1012590 , 15695145 , 31390290
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
-31390289
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 31390290 can be divided by 16 positive divisors.
The sum of these divisors (counting 31390290) is 1, the average is 0.0625.
Base
System
Value
2
Binary
1110111101111101001010010
3
Ternary
2012001210101100
4
Quaternary
1313233221102
5
Quinary
31013442130
6
Senary
3040445230
8
Octal
167575122
10
Decimal
31390290
12
Duodecimal
a619816
16
Hexadecimal
1defa52
20
Vigesimal
9g3fea
36
Base36
ioswi
md5
8f9da0fc9e00163321e728b1e60b7012
sha1
ff5bef9aebf89df0124692f5a8f71a20db49eb62
sha256
6a2f5dbc9bc21257508c77c01cd5cde736e0b177d58d132c12cfd6dec8da89ce
sha512
69612af0f1b0e6b7bbd9b31d17ea3755c8820cb852d125c7bd21f302110efd6a20cfa6c643089ec7c31c2fcd8a3e4d1205108b876cbc04a0b9828b7266a10112
ripemd-160
dbdc881a419c9d10b2b054a12a474aec75a9a842
Diameter
62780580
Circumference
197231008.91611
Area
3.0955692834346E+15
Volume
1.2956109002947E+23
Surface area
1.2382277133738E+16
Circumference
197231008.91611
Perimeter
125561160
Area
985350306284100
Diagonal
44392573.844825
Surface area
5912101837704600
Volume
3.0930431865847E+22
Space diagonal
54369577.144321
Perimeter
94170870
Area
4.266691984344E+14
Altitude
27184788.572161
Surface area
4.266691984344E+14
Volume
3.6451863528948E+21
Height
14797524.614942