31409985 is an odd 8-digits composite number following 31409984
and preceding 31409986 . In scientific notation, it is written as 3.1409985 × 10^7.
The sum of its digits is 39. It has a total of 4 prime factors and 16 positive divisors.
There are 16597440 positive integers (up to 31409985) that are relatively prime to 31409985.
31409985 has 16 divisors, whose sum is 50719680
The reverse of 31409985 is 58990413
Previous prime number is 109
Is Prime? no
Number parity odd
Number length 8
Sum of Digits 39
Digital Root 3
Name
thirty-one million four hundred nine thousand nine hundred eighty-five
Scientific notation
3.1409985 × 10^7
Engineering notation
3.1409985 × 10^6
Prime Factorization
3 × 5 × 109 × 19211
Composite number
ω
Distinct Factors
4
Total number of distinct prime factors
Ω
Total Factors
4
Total number of prime factors
rad
Radical
31409985
Product of the distinct prime numbers
The prime factorization of 31409985 is 3 × 5 × 109 × 19211.
Since it has a total of 4 prime factors.
5 , 4 , 41 , 86 , 949 , 495 , 5189 , 3161 , 8464 , 76773 , 626319 , 976209 , 5815690 , 3058735 , 70504995 , 71467295 , 69529041 , 505138708 , 3307759618 , 6086248632
n×2
62819970
n×3
94229955
n×4
125639940
n×5
157049925
n÷2
15704992.5
n÷3
10469995
n÷3
7852496.25
n÷5
6281997
n2
986587157700225
n3
3.0988687824557E+22
n4
9.7335421973901E+29
n5
3.0573041441689E+37
2 √n
5604.4611694613
3 √n
315.51686371702
4 √n
74.862949243677
5 √n
31.580103265647
1 , 3 , 5 , 15 , 109 , 327 , 545 , 1635 , 19211 , 57633 , 96055 , 288165 , 2093999 , 6281997 , 10469995 , 31409985
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
-31409984
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 31409985 can be divided by 16 positive divisors.
The sum of these divisors (counting 31409985) is 1, the average is 0.0625.
Base
System
Value
2
Binary
1110111110100011101000001
3
Ternary
2012002210101210
4
Quaternary
1313310131001
5
Quinary
31020104420
6
Senary
3041120333
8
Octal
167643501
10
Decimal
31409985
12
Duodecimal
a6290a9
16
Hexadecimal
1df4741
20
Vigesimal
9g64j5
36
Base36
ip83l
md5
f6d2aa31f62209912489d2cbe0a8d739
sha1
58e5c71c553e02f24b1ed9ead3ce62f7fefa96f7
sha256
42577c840d5eeea8d728148fd9fdd16e858f2d46c5339308581da7c7ed1d1929
sha512
125d70da3d029a05a65df1af4260af7515313e50b148dcb4e38f828bde96ccbc7dd19134a32c0e02ed2613f45a5217a385688701d66b6763f30e614ae0a30ce8
ripemd-160
d7b80815fe284a94c6512f45e438cc3a838d7635
Diameter
62819970
Circumference
197354756.25073
Area
3.0994549667571E+15
Volume
1.2980511201869E+23
Surface area
1.2397819867028E+16
Circumference
197354756.25073
Perimeter
125639940
Area
986587157700225
Diagonal
44420426.780935
Surface area
5919522946201350
Volume
3.0988687824557E+22
Space diagonal
54403689.884976
Perimeter
94229955
Area
4.2720477080794E+14
Altitude
27201844.942488
Surface area
4.2720477080794E+14
Volume
3.6520518834695E+21
Height
14806808.926978