18988897 is an odd 8-digits prime number following 18988896
and preceding 18988898 . In scientific notation, it is written as 1.8988897 × 10^7.
The sum of its digits is 58. It has a total of 1 prime factors and 2 positive divisors.
There are 18988896 positive integers (up to 18988897) that are relatively prime to 18988897.
18988897 has 2 divisors, whose sum is 18988898
The reverse of 18988897 is 79888981
Previous prime number is 1
Is Prime? yes Number parity odd Number length 8 Sum of Digits 58 Digital Root 4
Name
eighteen million nine hundred eighty-eight thousand eight hundred ninety-seven
Scientific notation
1.8988897 × 10^7
Engineering notation
1.8988897 × 10^6
Prime Factorization
18988897
Composite number
ω Distinct Factors
1 Total number of distinct prime factors
Ω Total Factors
1 Total number of prime factors
rad Radical
18988897 Product of the distinct prime numbers
The prime factorization of 18988897 is 18988897.
Since it has a total of 1 prime factors.
2 , 1 , 87 , 14 , 235 , 432 , 2618 , 7472 , 11548 , 90536 , 509265 , 348999 , 1415267 , 703368 , 13414739 , 29028521 , 976262113 , 116695805 , 9958776391 , 8234345389
n×2
37977794
n×3
56966691
n×4
75955588
n×5
94944485
n÷2
9494448.5
n÷3
6329632.3333333
n÷3
4747224.25
n÷5
3797779.4
n2
360578209276609
n3
6.846982476398E+21
n4
1.3001664500513E+29
n5
2.4688726802879E+36
2 √n4357.6251559766
3 √n266.78817708893
4 √n66.012310639581
5 √n28.55616927875
2 divisors
τ Total Divisors
2 Total number of the positive divisors of n
σ Sum of Divisors
18988898 Sum of all the positive divisors of n
s Aliquot Sum
1 Sum of the proper positive divisors of n
A Arithmetic Mean
9494449 Returns the sum of divisors (σ(n )) divided by the total number of divisors (τ(n ))
G Geometric Mean
4357.625270718 Returns the nth root of the product of n divisors
H Harmonic Mean
1.9999998946753 Returns the total number of divisors (τ(n )) divided by the sum of the reciprocal of each divisors
The number 18988897 can be divided by 2 positive divisors.
The sum of these divisors (counting 18988897) is 18988898, the average is 9494449.
Base
System
Value
2
Binary
1001000011011111101100001
3
Ternary
1022201201212111
4
Quaternary
1020123331201
5
Quinary
14330121042
6
Senary
1514555321
8
Octal
110337541
10
Decimal
18988897
12
Duodecimal
6438b41
16
Hexadecimal
121bf61
20
Vigesimal
5idc4h
36
Base36
bazxd
md5
8452550bd9a7b04fc667f78366c60c40
sha1
7765b5c2e3521cf9465a035631185a90fda8b678
sha256
7263144e5787443c0a9096596765359633dbe6ad2550b4d54772cad83b4289cd
sha512
d9ea3bc29caa584a10465edd801eedf240cb2d5df1e6a7a0d248f92c3c7b21e75816ff7578dade089f48fded1d86aa31cece3ce44bc0a03cf6c86a1d987138ad
ripemd-160
223e141e78262efcfc8530d5f1487ebe432b2359
Diameter
37977794
Circumference
119310758.62995
Area
1.132789853308E+15
Volume
2.868057312948E+22
Surface area
4.5311594132318E+15
Circumference
119310758.62995
Perimeter
75955588
Area
360578209276609
Diagonal
26854355.671906
Surface area
2163469255659654
Volume
6.846982476398E+21
Space diagonal
32889734.383692
Perimeter
56966691
Area
1.5613494464232E+14
Altitude
16444867.191846
Surface area
1.5613494464232E+14
Volume
8.0692462328774E+20
Height
8951451.8906353