77981937 is an odd 8-digits composite number following 77981936
and preceding 77981938 . In scientific notation, it is written as 7.7981937 × 10^7.
The sum of its digits is 51. It has a total of 4 prime factors and 16 positive divisors.
There are 44795520 positive integers (up to 77981937) that are relatively prime to 77981937.
77981937 has 16 divisors, whose sum is 87091200
The reverse of 77981937 is 73918977
Previous prime number is 127
Is Prime? no
Number parity odd
Number length 8
Sum of Digits 51
Digital Root 6
Name
seventy-seven million nine hundred eighty-one thousand nine hundred thirty-seven
Scientific notation
7.7981937 × 10^7
Engineering notation
7.7981937 × 10^6
Prime Factorization
69 × 11 × 127 × 809
Composite number
ω
Distinct Factors
4
Total number of distinct prime factors
Ω
Total Factors
4
Total number of prime factors
rad
Radical
77981937
Product of the distinct prime numbers
The prime factorization of 77981937 is 69 × 11 × 127 × 809.
Since it has a total of 4 prime factors.
3 , 3 , 43 , 78 , 112 , 617 , 2341 , 989 , 60545 , 19111 , 960261 , 604268 , 7442391 , 9367565 , 41800782 , 81759260 , 337749648 , 702091560 , 48304430 , 4496573292
n×2
155963874
n×3
233945811
n×4
311927748
n×5
389909685
n÷2
38990968.5
n÷3
25993979
n÷3
19495484.25
n÷5
15596387.4
n2
6081182498271969
n3
4.7422239046575E+23
n4
3.6980780577289E+31
n5
2.883832901189E+39
2 √n
8830.738191114
3 √n
427.23288398517
4 √n
93.972007486879
5 √n
37.879026036835
1 , 11 , 69 , 127 , 759 , 809 , 1397 , 8763 , 8899 , 55821 , 96393 , 102743 , 614031 , 1130173 , 7089267 , 77981937
16 divisors
τ
Total Divisors
16
Total number of the positive divisors of n
σ
Sum of Divisors
1
Sum of all the positive divisors of n
s
Aliquot Sum
-77981936
Sum of the proper positive divisors of n
A
Arithmetic Mean
0.0625
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
16
Returns the total number of divisors (τ(n )) divided by the sum of the reciprocal of each divisors
The number 77981937 can be divided by 16 positive divisors.
The sum of these divisors (counting 77981937) is 1, the average is 0.0625.
Base
System
Value
2
Binary
100101001011110100011110001
3
Ternary
12102201220002220
4
Quaternary
10221132203301
5
Quinary
124430410222
6
Senary
11423231253
8
Octal
451364361
10
Decimal
77981937
12
Duodecimal
22148529
16
Hexadecimal
4a5e8f1
20
Vigesimal
1477egh
36
Base36
1aff8x
md5
ad2f03dab7c4ed0a24ac17c86cdf5758
sha1
4c2f9fe7c99ca30669575ebf5d8472599e770922
sha256
e30b3c27317bc1697df8586e6067e995ccc061e727a0239d5fb31b08aa1dcb6e
sha512
888ac03dc9e0f590820ae108f8070f46d786b25be01849840a6db6770ba40547b77f3365a488ffd5927a5928f9374f35a2ec51b2915e5ac1df751c59bf46dbc7
ripemd-160
edd990484fb928bdb2cd4733f8a7e3013f4eea97
Diameter
155963874
Circumference
489974960.7838
Area
1.910459826171E+16
Volume
1.9864181040733E+24
Surface area
7.641839304684E+16
Circumference
489974960.7838
Perimeter
311927748
Area
6081182498271969
Diagonal
110283112.92552
Surface area
36487094989631814
Volume
4.7422239046575E+23
Space diagonal
135068676.95664
Perimeter
233945811
Area
2.6332292642764E+15
Altitude
67534338.478318
Surface area
2.6332292642764E+15
Volume
5.5887644681471E+22
Height
36761037.641841