18982021 is an odd 8-digits prime number following 18982020
and preceding 18982022 . In scientific notation, it is written as 1.8982021 × 10^7.
The sum of its digits is 31. It has a total of 1 prime factors and 2 positive divisors.
There are 18982020 positive integers (up to 18982021) that are relatively prime to 18982021.
18982021 has 2 divisors, whose sum is 18982022
The reverse of 18982021 is 12028981
Previous prime number is 1
Is Prime? yes
Number parity odd
Number length 8
Sum of Digits 31
Digital Root 4
Name
eighteen million nine hundred eighty-two thousand twenty-one
Scientific notation
1.8982021 × 10^7
Engineering notation
1.8982021 × 10^6
Prime Factorization
18982021
Composite number
ω
Distinct Factors
1
Total number of distinct prime factors
Ω
Total Factors
1
Total number of prime factors
rad
Radical
18982021
Product of the distinct prime numbers
The prime factorization of 18982021 is 18982021.
Since it has a total of 1 prime factors.
1 , 7 , 29 , 70 , 330 , 802 , 7905 , 4116 , 84611 , 74570 , 775876 , 132866 , 4258999 , 4761982 , 71713065 , 93525093 , 935488205 , 618763536 , 2854870029 , 235771273
n×2
37964042
n×3
56946063
n×4
75928084
n×5
94910105
n÷2
9491010.5
n÷3
6327340.3333333
n÷3
4745505.25
n÷5
3796404.2
n2
360317121244441
n3
6.8395471621215E+21
n4
1.2982842786188E+29
n5
2.4644059440712E+36
2 √n
4356.8361226927
3 √n
266.7559713045
4 √n
66.006333958891
5 √n
28.554100905149
2 divisors
τ
Total Divisors
2
Total number of the positive divisors of n
σ
Sum of Divisors
18982022
Sum of all the positive divisors of n
s
Aliquot Sum
1
Sum of the proper positive divisors of n
A
Arithmetic Mean
9491011
Returns the sum of divisors (σ(n )) divided by the total number of divisors (τ(n ))
G
Geometric Mean
4356.8362374549
Returns the nth root of the product of n divisors
H
Harmonic Mean
1.9999998946371
Returns the total number of divisors (τ(n )) divided by the sum of the reciprocal of each divisors
The number 18982021 can be divided by 2 positive divisors.
The sum of these divisors (counting 18982021) is 18982022, the average is 9491011.
Base
System
Value
2
Binary
1001000011010010010000101
3
Ternary
1022201101102211
4
Quaternary
1020122102011
5
Quinary
14324411041
6
Senary
1514503421
8
Octal
110322205
10
Decimal
18982021
12
Duodecimal
6434b71
16
Hexadecimal
121a485
20
Vigesimal
5icf11
36
Base36
baumd
md5
351d69dd536021cc976980562ab2b267
sha1
047244b387e92aacca66fc78a4f7ef8076335f49
sha256
aac7b26d7011a2cb66e455ff76e6f13f054be729e6d3becabd40ecbf0a27584c
sha512
4913f78d2cb48da4e350d0b88e81e944c7daf3b1a407c73d04d33f6715890776aca60f9f1e5f41bfa274e1d0585683c4a9c27acd4cd094fdb104e97d7ea44c0d
ripemd-160
ae9cbc17d7c8d13c1650f1b0ef5dc1164fc51050
Diameter
37964042
Circumference
119267555.44777
Area
1.1319696210642E+15
Volume
2.8649428157869E+22
Surface area
4.5278784842566E+15
Circumference
119267555.44777
Perimeter
75928084
Area
360317121244441
Diagonal
26844631.539451
Surface area
2161902727466646
Volume
6.8395471621215E+21
Space diagonal
32877824.802339
Perimeter
56946063
Area
1.5602189020808E+14
Altitude
16438912.40117
Surface area
1.5602189020808E+14
Volume
8.0604836309689E+20
Height
8948210.5131503