19902689 is an odd 8-digits prime number following 19902688
and preceding 19902690 . In scientific notation, it is written as 1.9902689 × 10^7.
The sum of its digits is 44. It has a total of 1 prime factors and 2 positive divisors.
There are 19902688 positive integers (up to 19902689) that are relatively prime to 19902689.
19902689 has 2 divisors, whose sum is 19902690
The reverse of 19902689 is 98620991
Previous prime number is 1
Is Prime? yes
Number parity odd
Number length 8
Sum of Digits 44
Digital Root 8
Name
nineteen million nine hundred two thousand six hundred eighty-nine
Scientific notation
1.9902689 × 10^7
Engineering notation
1.9902689 × 10^6
Prime Factorization
19902689
Composite number
ω
Distinct Factors
1
Total number of distinct prime factors
Ω
Total Factors
1
Total number of prime factors
rad
Radical
19902689
Product of the distinct prime numbers
The prime factorization of 19902689 is 19902689.
Since it has a total of 1 prime factors.
5 , 8 , 18 , 60 , 546 , 204 , 354 , 4566 , 10873 , 21347 , 958042 , 573595 , 5472086 , 1849513 , 5698854 , 13589731 , 978888500 , 382433478 , 7900202664 , 1602219514
n×2
39805378
n×3
59708067
n×4
79610756
n×5
99513445
n÷2
9951344.5
n÷3
6634229.6666667
n÷3
4975672.25
n÷5
3980537.8
n2
396117029430721
n3
7.8837940443635E+21
n4
1.5690870100502E+29
n5
3.1229050774969E+36
2 √n
4461.2429882265
3 √n
271.00080790235
4 √n
66.792536920127
5 √n
28.825865197773
2 divisors
τ
Total Divisors
2
Total number of the positive divisors of n
σ
Sum of Divisors
19902690
Sum of all the positive divisors of n
s
Aliquot Sum
1
Sum of the proper positive divisors of n
A
Arithmetic Mean
9951345
Returns the sum of divisors (σ(n )) divided by the total number of divisors (τ(n ))
G
Geometric Mean
4461.2431003029
Returns the nth root of the product of n divisors
H
Harmonic Mean
1.9999998995111
Returns the total number of divisors (τ(n )) divided by the sum of the reciprocal of each divisors
The number 19902689 can be divided by 2 positive divisors.
The sum of these divisors (counting 19902689) is 19902690, the average is 9951345.
Base
System
Value
2
Binary
1001011111011000011100001
3
Ternary
1101110011100122
4
Quaternary
1023323003201
5
Quinary
20043341224
6
Senary
1550330025
8
Octal
113730341
10
Decimal
19902689
12
Duodecimal
67b9915
16
Hexadecimal
12fb0e1
20
Vigesimal
647ge9
36
Base36
bul0h
md5
a0d783325db3e52da46bab414a301251
sha1
bb8ae8cb973e8a26d25bd42e463db49828f0f898
sha256
fcc76e0c0917ec6d9679e6ade0e346cf50c96b0067e242607eb02b6f863057df
sha512
280df0b6d86b3911654fad96f48706bac845c43a56c215134b657f0b361cd184ebed5e8a6f1adb77cd6333e431e9246b1f6be49d69b0fd65a81d3eac494ed7b7
ripemd-160
b89ad61eecfe49bbb966b32349e8f91ae1a06cbe
Diameter
39805378
Circumference
125052283.09816
Area
1.2444383496214E+15
Volume
3.3023559269583E+22
Surface area
4.9777533984855E+15
Circumference
125052283.09816
Perimeter
79610756
Area
396117029430721
Diagonal
28146652.711494
Surface area
2376702176584326
Volume
7.8837940443635E+21
Space diagonal
34472468.555242
Perimeter
59708067
Area
1.7152370517932E+14
Altitude
17236234.277621
Surface area
1.7152370517932E+14
Volume
9.2911403837459E+20
Height
9382217.5704979