77887972 is an even 8-digits composite number following 77887971
and preceding 77887973 . In scientific notation, it is written as 7.7887972 × 10^7.
The sum of its digits is 55. It has a total of 5 prime factors and 18 positive divisors.
There are 38298240 positive integers (up to 77887972) that are relatively prime to 77887972.
77887972 has 18 divisors, whose sum is 138601554
The reverse of 77887972 is 27978877
Previous prime number is 61
Is Prime? no
Number parity even
Number length 8
Sum of Digits 55
Digital Root 1
Name
seventy-seven million eight hundred eighty-seven thousand nine hundred seventy-two
Scientific notation
7.7887972 × 10^7
Engineering notation
7.7887972 × 10^6
Prime Factorization
2 × 2 × 61 × 61 × 5233
Composite number
ω
Distinct Factors
3
Total number of distinct prime factors
Ω
Total Factors
5
Total number of prime factors
rad
Radical
638426
Product of the distinct prime numbers
The prime factorization of 77887972 is 2 × 2 × 61 × 61 × 5233.
Since it has a total of 5 prime factors.
2 , 2 , 11 , 35 , 920 , 253 , 3990 , 3087 , 99398 , 64090 , 466572 , 553265 , 8503288 , 9671345 , 92091977 , 60197694 , 96709605 , 245754111 , 5362602414 , 4788581258
n×2
155775944
n×3
233663916
n×4
311551888
n×5
389439860
n÷2
38943986
n÷3
25962657.333333
n÷3
19471993
n÷5
15577594.4
n2
6066536182272784
n3
4.7251020030185E+23
n4
3.6802861250825E+31
n5
2.8665002266241E+39
2 √n
8825.4162508065
3 √n
427.06121571335
4 √n
93.943686593653
5 √n
37.869893102761
1 , 2 , 4 , 61 , 122 , 244 , 3721 , 5233 , 7442 , 10466 , 14884 , 20932 , 319213 , 638426 , 1276852 , 19471993 , 38943986 , 77887972
18 divisors
τ
Total Divisors
18
Total number of the positive divisors of n
σ
Sum of Divisors
1
Sum of all the positive divisors of n
s
Aliquot Sum
-77887971
Sum of the proper positive divisors of n
A
Arithmetic Mean
0.055555555555556
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
18
Returns the total number of divisors (τ(n )) divided by the sum of the reciprocal of each divisors
The number 77887972 can be divided by 18 positive divisors.
The sum of these divisors (counting 77887972) is 1, the average is 0.055555555555556.
Base
System
Value
2
Binary
100101001000111100111100100
3
Ternary
12102120010012201
4
Quaternary
10221013213210
5
Quinary
124414403342
6
Senary
11421224244
8
Octal
451074744
10
Decimal
77887972
12
Duodecimal
22102084
16
Hexadecimal
4a479e4
20
Vigesimal
146fjic
36
Base36
1adeqs
md5
63c026604dd0e90b1188aa9034041f45
sha1
663bd256261b113b858c2da514d28ef95c442363
sha256
723aeaa059a1b97871da3c8a5c81d2fba75956d2ff6fe44c6667fa2782e3f922
sha512
727a4acde41d24e653be52c2e760ffde9bd56cd86bdd82c0686f51923f9d923bc91c5d82064b8ae11a3e6cb4d3e890d89442d37c7d597413718474692ade5883
ripemd-160
5fbc7c85ca81e17d3564b59673b95d657b2bab68
Diameter
155775944
Circumference
489384561.27641
Area
1.9058585502965E+16
Volume
1.979246098686E+24
Surface area
7.6234342011859E+16
Circumference
489384561.27641
Perimeter
311551888
Area
6066536182272784
Diagonal
110150226.34814
Surface area
36399217093636704
Volume
4.7251020030185E+23
Space diagonal
134905924.8025
Perimeter
233663916
Area
2.6268872234128E+15
Altitude
67452962.401251
Surface area
2.6268872234128E+15
Volume
5.5685861135542E+22
Height
36716742.116045