77981954 is an even 8-digits composite number following 77981953
and preceding 77981955 . In scientific notation, it is written as 7.7981954 × 10^7.
The sum of its digits is 50. It has a total of 2 prime factors and 4 positive divisors.
There are 38990976 positive integers (up to 77981954) that are relatively prime to 77981954.
77981954 has 4 divisors, whose sum is 116972934
The reverse of 77981954 is 45918977
Previous prime number is 2
Is Prime? no
Number parity even
Number length 8
Sum of Digits 50
Digital Root 5
Name
seventy-seven million nine hundred eighty-one thousand nine hundred fifty-four
Scientific notation
7.7981954 × 10^7
Engineering notation
7.7981954 × 10^6
Prime Factorization
2 × 38990977
Composite number
ω
Distinct Factors
2
Total number of distinct prime factors
Ω
Total Factors
2
Total number of prime factors
rad
Radical
77981954
Product of the distinct prime numbers
The prime factorization of 77981954 is 2 × 38990977.
Since it has a total of 2 prime factors.
4 , 1 , 96 , 82 , 662 , 877 , 4572 , 1410 , 78911 , 48241 , 873303 , 696374 , 1573681 , 3044951 , 4178938 , 47464431 , 97500875 , 800514318 , 2443623932 , 6746133181
n×2
155963908
n×3
233945862
n×4
311927816
n×5
389909770
n÷2
38990977
n÷3
25993984.666667
n÷3
19495488.5
n÷5
15596390.8
n2
6081185149658116
n3
4.7422270060612E+23
n4
3.6980812824422E+31
n5
2.8838360445567E+39
2 √n
8830.7391536609
3 √n
427.23291503065
4 √n
93.972012608334
5 √n
37.879027688354
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
-77981953
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 77981954 can be divided by 4 positive divisors.
The sum of these divisors (counting 77981954) is 1, the average is 0.25.
Base
System
Value
2
Binary
100101001011110100100000010
3
Ternary
12102201220010112
4
Quaternary
10221132210002
5
Quinary
124430410304
6
Senary
11423231322
8
Octal
451364402
10
Decimal
77981954
12
Duodecimal
22148542
16
Hexadecimal
4a5e902
20
Vigesimal
1477ehe
36
Base36
1aff9e
md5
349eceadd9990ea3b2341ce8e670ae5f
sha1
f3050a5393f90cf33e70ae5215bb37255013f81a
sha256
39e033a678fdf81af90d911844b7f1a9f21651c43848b140881ded9752dea2e6
sha512
90d270370d8bee7328c7b533c2f16c54eb7c14c211d3801ae07cd84c9e0b1402d64f3165b58e21c8bb0069b80bbac813ef40f3cdda5785fe70adfba659f8a21a
ripemd-160
956485ec5a881df7ecebc2b96c92ecaac89a2866
Diameter
155963908
Circumference
489975067.59795
Area
1.9104606591285E+16
Volume
1.9864194031863E+24
Surface area
7.6418426365141E+16
Circumference
489975067.59795
Perimeter
311927816
Area
6081185149658116
Diagonal
110283136.96715
Surface area
36487110897948696
Volume
4.7422270060612E+23
Space diagonal
135068706.4015
Perimeter
233945862
Area
2.6332304123603E+15
Altitude
67534353.20075
Surface area
2.6332304123603E+15
Volume
5.5887681231864E+22
Height
36761045.655718