16981561 is an odd 8-digits composite number following 16981560
and preceding 16981562 . In scientific notation, it is written as 1.6981561 × 10^7.
The sum of its digits is 37. It has a total of 2 prime factors and 4 positive divisors.
There are 16857472 positive integers (up to 16981561) that are relatively prime to 16981561.
16981561 has 4 divisors, whose sum is 17105652
The reverse of 16981561 is 16518961
Previous prime number is 137
Is Prime? no
Number parity odd
Number length 8
Sum of Digits 37
Digital Root 1
Name
sixteen million nine hundred eighty-one thousand five hundred sixty-one
Scientific notation
1.6981561 × 10^7
Engineering notation
1.6981561 × 10^6
Prime Factorization
137 × 123953
Composite number
ω
Distinct Factors
2
Total number of distinct prime factors
Ω
Total Factors
2
Total number of prime factors
rad
Radical
16981561
Product of the distinct prime numbers
The prime factorization of 16981561 is 137 × 123953.
Since it has a total of 2 prime factors.
2 , 2 , 14 , 4 , 208 , 300 , 7939 , 82 , 57833 , 13907 , 292447 , 827074 , 1096508 , 5635618 , 86848809 , 72741001 , 74706120 , 249807568 , 2599702507 , 3025908314
n×2
33963122
n×3
50944683
n×4
67926244
n×5
84907805
n÷2
8490780.5
n÷3
5660520.3333333
n÷3
4245390.25
n÷5
3396312.2
n2
288373413996721
n3
4.8970307205636E+21
n4
8.3159225900124E+28
n5
1.4121734673357E+36
2 √n
4120.8689617604
3 √n
257.03516100053
4 √n
64.193994748422
5 √n
27.925150468851
4 divisors
τ
Total Divisors
4
Total number of the positive divisors of n
σ
Sum of Divisors
1
Sum of all the positive divisors of n
s
Aliquot Sum
-16981560
Sum of the proper positive divisors of n
A
Arithmetic Mean
0.25
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
4
Returns the total number of divisors (τ(n )) divided by the sum of the reciprocal of each divisors
The number 16981561 can be divided by 4 positive divisors.
The sum of these divisors (counting 16981561) is 1, the average is 0.25.
Base
System
Value
2
Binary
1000000110001111000111001
3
Ternary
1011221202022201
4
Quaternary
1000301320321
5
Quinary
13321402221
6
Senary
1403550201
8
Octal
100617071
10
Decimal
16981561
12
Duodecimal
582b361
16
Hexadecimal
1031e39
20
Vigesimal
562di1
36
Base36
a3z21
md5
e93cb227b815551837780c2d1afe3cb5
sha1
aeb6c4b9c32b380f77b47b2d1355d3e65b83e201
sha256
8fa255e361288a7695955e6795641953acce1dffe42ff6f90c10ac29d127f164
sha512
ee795a3b3ef608d5f664c55833ae92c7deba35857dc23f3e7ac6975d5d495e26b6926ff73597bb4595bb3118ca5f6ce5801d7c41545664fbf3f0d36242a31397
ripemd-160
3b8ec231884ff5bab83b294c69d77c6086edc3c7
Diameter
33963122
Circumference
106698294.56817
Area
9.0595179890271E+14
Volume
2.0512634314835E+22
Surface area
3.6238071956108E+15
Circumference
106698294.56817
Perimeter
67926244
Area
288373413996721
Diagonal
24015553.876466
Surface area
1730240483980326
Volume
4.8970307205636E+21
Space diagonal
29412926.44383
Perimeter
50944683
Area
1.248693511486E+14
Altitude
14706463.221915
Surface area
1.248693511486E+14
Volume
5.7712060503156E+20
Height
8005184.6254887