20987002 is an even 8-digits composite number following 20987001
and preceding 20987003 . In scientific notation, it is written as 2.0987002 × 10^7.
The sum of its digits is 28. It has a total of 3 prime factors and 8 positive divisors.
There are 10487004 positive integers (up to 20987002) that are relatively prime to 20987002.
20987002 has 8 divisors, whose sum is 31500000
The reverse of 20987002 is 20078902
Previous prime number is 3499
Is Prime? no
Number parity even
Number length 8
Sum of Digits 28
Digital Root 1
Name
twenty million nine hundred eighty-seven thousand two
Scientific notation
2.0987002 × 10^7
Engineering notation
2.0987002 × 10^6
Prime Factorization
2 × 3499 × 2999
Composite number
ω
Distinct Factors
3
Total number of distinct prime factors
Ω
Total Factors
3
Total number of prime factors
rad
Radical
20987002
Product of the distinct prime numbers
The prime factorization of 20987002 is 2 × 3499 × 2999.
Since it has a total of 3 prime factors.
10 , 2 , 77 , 30 , 770 , 387 , 5941 , 5529 , 88039 , 44796 , 999551 , 146642 , 3237391 , 7004591 , 61851753 , 13495060 , 487644635 , 469049678 , 9204609295 , 2449970930
n×2
41974004
n×3
62961006
n×4
83948008
n×5
104935010
n÷2
10493501
n÷3
6995667.3333333
n÷3
5246750.5
n÷5
4197400.4
n2
440454252948004
n3
9.2438142875283E+21
n4
1.9399994893998E+29
n5
4.0714773164033E+36
2 √n
4581.15727737
3 √n
275.83548446726
4 √n
67.684246892242
5 √n
29.133326817429
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
-20987001
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 20987002 can be divided by 8 positive divisors.
The sum of these divisors (counting 20987002) is 1, the average is 0.125.
Base
System
Value
2
Binary
1010000000011110001111010
3
Ternary
1110111020202101
4
Quaternary
1100003301322
5
Quinary
20333041002
6
Senary
2025454014
8
Octal
120036172
10
Decimal
20987002
12
Duodecimal
704130a
16
Hexadecimal
1403c7a
20
Vigesimal
6b37a2
36
Base36
chtoa
md5
303a20df8588d47b1f4d6b2c3bb99fcb
sha1
9c2855ec8b068335ea15fc8edb6a88499c9d7ef3
sha256
ae03e33fe0f843a7ae9d6dfce64e31309f911c5ed4c162633995058e079b035d
sha512
c859f50d444c652e20c23e376e00ce30e09b39cb2328bb0aeb5a4584352cb796f06665973cc6a0c673c4276ef37d375e23952d79ff16696a1d1fc141de04d860
ripemd-160
9d34a413b152d88ceaaab89fe9111d84ff7a521a
Diameter
41974004
Circumference
131865222.60815
Area
1.3837278453038E+15
Volume
3.8720398742463E+22
Surface area
5.5349113812153E+15
Circumference
131865222.60815
Perimeter
83948008
Area
440454252948004
Diagonal
29680102.861951
Surface area
2642725517688024
Volume
9.2438142875283E+21
Space diagonal
36350553.76255
Perimeter
62961006
Area
1.9072228612893E+14
Altitude
18175276.881275
Surface area
1.9072228612893E+14
Volume
1.0893939611234E+21
Height
9893367.6206504