81502489 is an odd 8-digits prime number following 81502488
and preceding 81502490 . In scientific notation, it is written as 8.1502489 × 10^7.
The sum of its digits is 37. It has a total of 1 prime factors and 2 positive divisors.
There are 81502488 positive integers (up to 81502489) that are relatively prime to 81502489.
81502489 has 2 divisors, whose sum is 81502490
The reverse of 81502489 is 98420518
Previous prime number is 1
Is Prime? yes
Number parity odd
Number length 8
Sum of Digits 37
Digital Root 1
Name
eighty-one million five hundred two thousand four hundred eighty-nine
Scientific notation
8.1502489 × 10^7
Engineering notation
8.1502489 × 10^6
Prime Factorization
81502489
Composite number
ω
Distinct Factors
1
Total number of distinct prime factors
Ω
Total Factors
1
Total number of prime factors
rad
Radical
81502489
Product of the distinct prime numbers
The prime factorization of 81502489 is 81502489.
Since it has a total of 1 prime factors.
1 , 1 , 30 , 70 , 349 , 910 , 8118 , 215 , 90539 , 16570 , 327096 , 5511 , 9741584 , 2918762 , 39053099 , 98264953 , 906469461 , 929721394 , 9702028388 , 6551625051
n×2
163004978
n×3
244507467
n×4
326009956
n×5
407512445
n÷2
40751244.5
n÷3
27167496.333333
n÷3
20375622.25
n÷5
16300497.8
n2
6642655713195121
n3
5.4139297419547E+23
n4
4.4124874924044E+31
n5
3.5962871331233E+39
2 √n
9027.8728945417
3 √n
433.56773662631
4 √n
95.015119294466
5 √n
38.215027317222
2 divisors
τ
Total Divisors
2
Total number of the positive divisors of n
σ
Sum of Divisors
81502490
Sum of all the positive divisors of n
s
Aliquot Sum
1
Sum of the proper positive divisors of n
A
Arithmetic Mean
40751245
Returns the sum of divisors (σ(n )) divided by the total number of divisors (τ(n ))
G
Geometric Mean
9027.8729499257
Returns the nth root of the product of n divisors
H
Harmonic Mean
1.9999999754609
Returns the total number of divisors (τ(n )) divided by the sum of the reciprocal of each divisors
The number 81502489 can be divided by 2 positive divisors.
The sum of these divisors (counting 81502489) is 81502490, the average is 40751245.
Base
System
Value
2
Binary
100110110111010000100011001
3
Ternary
12200100202101201
4
Quaternary
10312322010121
5
Quinary
131331034424
6
Senary
12030514201
8
Octal
466720431
10
Decimal
81502489
12
Duodecimal
23365961
16
Hexadecimal
4dba119
20
Vigesimal
1597g49
36
Base36
1civq1
md5
d3aba34673e1b8b891292c7f2967f107
sha1
9fd02476027f0a44c26ee3aa7815f90970307ca3
sha256
49f5f50ee82345b08ed25896967c60e7cf9c0d4c95fc8601722121a406a55394
sha512
64fdd1a3e2604c0d65c52675d2e43d8f5bd33413431f1d5c72d2062c247bbffb31f6c9a165f7e5cb6ff1abb53a65ca89f2355854e2bf6512858e2d3f3f54dba7
ripemd-160
844160d0ba301fd38ac699f767f8ba15c607a94c
Diameter
163004978
Circumference
512095241.38337
Area
2.08685183889E+16
Volume
2.2677815872502E+24
Surface area
8.34740735556E+16
Circumference
512095241.38337
Perimeter
326009956
Area
6642655713195121
Diagonal
115261925.31096
Surface area
39855934279170726
Volume
5.4139297419547E+23
Space diagonal
141166451.89132
Perimeter
244507467
Area
2.8763542981104E+15
Altitude
70583225.945662
Surface area
2.8763542981104E+15
Volume
6.3803773890062E+22
Height
38420641.770321