21698894 is an even 8-digits composite number following 21698893
and preceding 21698895 . In scientific notation, it is written as 2.1698894 × 10^7.
The sum of its digits is 47. It has a total of 3 prime factors and 8 positive divisors.
There are 9299520 positive integers (up to 21698894) that are relatively prime to 21698894.
21698894 has 8 divisors, whose sum is 37198128
The reverse of 21698894 is 49889612
Previous prime number is 7
Is Prime? no
Number parity even
Number length 8
Sum of Digits 47
Digital Root 2
Name
twenty-one million six hundred ninety-eight thousand eight hundred ninety-four
Scientific notation
2.1698894 × 10^7
Engineering notation
2.1698894 × 10^6
Prime Factorization
2 × 7 × 1549921
Composite number
ω
Distinct Factors
3
Total number of distinct prime factors
Ω
Total Factors
3
Total number of prime factors
rad
Radical
21698894
Product of the distinct prime numbers
The prime factorization of 21698894 is 2 × 7 × 1549921.
Since it has a total of 3 prime factors.
4 , 8 , 100 , 54 , 329 , 870 , 3722 , 1952 , 27850 , 1468 , 524270 , 524714 , 2730184 , 1240767 , 2585790 , 1888880 , 910357350 , 462785052 , 686363314 , 6656141339
n×2
43397788
n×3
65096682
n×4
86795576
n×5
108494470
n÷2
10849447
n÷3
7232964.6666667
n÷3
5424723.5
n÷5
4339778.8
n2
470842000823236
n3
1.0216750666611E+22
n4
2.2169218973923E+29
n5
4.8104753257794E+36
2 √n
4658.2071658525
3 √n
278.91970642862
4 √n
68.251059814867
5 √n
29.328342517747
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
-21698893
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 21698894 can be divided by 8 positive divisors.
The sum of these divisors (counting 21698894) is 1, the average is 0.125.
Base
System
Value
2
Binary
1010010110001100101001110
3
Ternary
1111211102021202
4
Quaternary
1102301211032
5
Quinary
21023331034
6
Senary
2053025502
8
Octal
122614516
10
Decimal
21698894
12
Duodecimal
7325292
16
Hexadecimal
14b194e
20
Vigesimal
6fc74e
36
Base36
cx2z2
md5
233b58ec3f021802817d5fbf7e60ec0b
sha1
8abdefa92742e995a4269a4427fd2415518971ff
sha256
cbb4c7616f966b56c11ebc7bbd0a3e20b267840e69ff45fd45b154e25e231789
sha512
6042433aa120e59b8064dc3ed7bb17029b745ba8c569259d9e3ad4b47b3d0883b32b0b360266c4c41fc0d48f4c62fdc24362a849e44a6bb631ec8109a2b37112
ripemd-160
b4287c80c5ecf1d2f572becb6280872a2fd016d0
Diameter
43397788
Circumference
136338171.96285
Area
1.4791937707878E+15
Volume
4.2795825117046E+22
Surface area
5.9167750831512E+15
Circumference
136338171.96285
Perimeter
86795576
Area
470842000823236
Diagonal
30686870.183296
Surface area
2825052004939416
Volume
1.0216750666611E+22
Space diagonal
37583586.876051
Perimeter
65096682
Area
2.0388056694081E+14
Altitude
18791793.438026
Surface area
2.0388056694081E+14
Volume
1.2040556130088E+21
Height
10228956.727765