61887989 is an odd 8-digits composite number following 61887988
and preceding 61887990 . In scientific notation, it is written as 6.1887989 × 10^7.
The sum of its digits is 56. It has a total of 2 prime factors and 4 positive divisors.
There are 61400556 positive integers (up to 61887989) that are relatively prime to 61887989.
61887989 has 4 divisors, whose sum is 62375424
The reverse of 61887989 is 98978816
Previous prime number is 127
Is Prime? no
Number parity odd
Number length 8
Sum of Digits 56
Digital Root 2
Name
sixty-one million eight hundred eighty-seven thousand nine hundred eighty-nine
Scientific notation
6.1887989 × 10^7
Engineering notation
6.1887989 × 10^6
Prime Factorization
127 × 487307
Composite number
ω
Distinct Factors
2
Total number of distinct prime factors
Ω
Total Factors
2
Total number of prime factors
rad
Radical
61887989
Product of the distinct prime numbers
The prime factorization of 61887989 is 127 × 487307.
Since it has a total of 2 prime factors.
10 , 3 , 27 , 45 , 696 , 741 , 687 , 5456 , 91740 , 73387 , 603052 , 951793 , 4141178 , 5467916 , 67861983 , 36523077 , 339440554 , 854789783 , 6387022185 , 8343243996
n×2
123775978
n×3
185663967
n×4
247551956
n×5
309439945
n÷2
30943994.5
n÷3
20629329.666667
n÷3
15471997.25
n÷5
12377597.8
n2
3830123182464121
n3
2.3703862138498E+23
n4
1.4669843592849E+31
n5
9.0788711890596E+38
2 √n
7866.8919529888
3 √n
395.55066922534
4 √n
88.69550131201
5 √n
36.167731852116
4 divisors
τ
Total Divisors
4
Total number of the positive divisors of n
σ
Sum of Divisors
1
Sum of all the positive divisors of n
s
Aliquot Sum
-61887988
Sum of the proper positive divisors of n
A
Arithmetic Mean
0.25
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
4
Returns the total number of divisors (τ(n )) divided by the sum of the reciprocal of each divisors
The number 61887989 can be divided by 4 positive divisors.
The sum of these divisors (counting 61887989) is 1, the average is 0.25.
Base
System
Value
2
Binary
11101100000101010111110101
3
Ternary
11022110020100202
4
Quaternary
3230011113311
5
Quinary
111320403424
6
Senary
10050250245
8
Octal
354052765
10
Decimal
61887989
12
Duodecimal
18886985
16
Hexadecimal
3b055f5
20
Vigesimal
j6fjj9
36
Base36
10uh2t
md5
edbab8653efdd96b524d3d1efa8c971b
sha1
09be673f61b0cd670b661ce5acdaa3014f4e8c43
sha256
79317fb3188b4f3f134cb90e8542fd85218aff2b12906051f09996f7b54a98ce
sha512
8202ce20b2f1b0ac5fd54839cd0f1b5cb8d615b8461b5462f4f9e5a5ece5f27fe78eb3ded13a0b088d0b71bbb6042bbd313b2dc3a92fabfb124980a5cec5640e
ripemd-160
8a7b8147f17bf0e8bc22b49a0e2d6f5d3fb109b9
Diameter
123775978
Circumference
388853703.17569
Area
1.2032686852373E+16
Volume
9.9290505541349E+23
Surface area
4.8130747409493E+16
Circumference
388853703.17569
Perimeter
247551956
Area
3830123182464121
Diagonal
87522833.391797
Surface area
22980739094784726
Volume
2.3703862138498E+23
Space diagonal
107193141.32626
Perimeter
185663967
Area
1.6584919878188E+15
Altitude
53596570.663132
Surface area
1.6584919878188E+15
Volume
2.7935269430739E+22
Height
29174277.797266