129781372 is an even 9-digits composite number following 129781371
and preceding 129781373 . In scientific notation, it is written as 1.29781372 × 10^8.
The sum of its digits is 40. It has a total of 5 prime factors and 24 positive divisors.
There are 55461360 positive integers (up to 129781372) that are relatively prime to 129781372.
129781372 has 24 divisors, whose sum is 260305920
The reverse of 129781372 is 273187921
Previous prime number is 359
Is Prime? no
Number parity even
Number length 9
Sum of Digits 40
Digital Root 4
Name
one hundred twenty-nine million seven hundred eighty-one thousand three hundred seventy-two
Scientific notation
1.29781372 × 10^8
Engineering notation
1.29781372 × 10^6
Prime Factorization
2 × 2 × 7 × 359 × 12911
Composite number
ω
Distinct Factors
4
Total number of distinct prime factors
Ω
Total Factors
5
Total number of prime factors
rad
Radical
64890686
Product of the distinct prime numbers
The prime factorization of 129781372 is 2 × 2 × 7 × 359 × 12911.
Since it has a total of 5 prime factors.
3 , 8 , 82 , 29 , 213 , 324 , 7580 , 5073 , 6524 , 9621 , 85997 , 111841 , 5507868 , 6528413 , 80050335 , 51279776 , 196642379 , 975345102 , 4093109233 , 7332354028
n×2
259562744
n×3
389344116
n×4
519125488
n×5
648906860
n÷2
64890686
n÷3
43260457.333333
n÷3
32445343
n÷5
25956274.4
n2
16843204518202384
n3
2.1859341912489E+24
n4
2.8369353844199E+32
n5
3.6818136646537E+40
2 √n
11392.162744624
3 √n
506.29556177857
4 √n
106.73407489937
5 √n
41.94135645774
1 , 2 , 4 , 7 , 14 , 28 , 359 , 718 , 1436 , 2513 , 5026 , 10052 , 12911 , 25822 , 51644 , 90377 , 180754 , 361508 , 4635049 , 9270098 , 18540196 , 32445343 , 64890686 , 129781372
24 divisors
τ
Total Divisors
24
Total number of the positive divisors of n
σ
Sum of Divisors
1
Sum of all the positive divisors of n
s
Aliquot Sum
-129781371
Sum of the proper positive divisors of n
A
Arithmetic Mean
0.041666666666667
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
24
Returns the total number of divisors (τ(n )) divided by the sum of the reciprocal of each divisors
The number 129781372 can be divided by 24 positive divisors.
The sum of these divisors (counting 129781372) is 1, the average is 0.041666666666667.
Base
System
Value
2
Binary
111101111000100111001111100
3
Ternary
100001012120120111
4
Quaternary
13233010321330
5
Quinary
231211000442
6
Senary
20513355404
8
Octal
757047174
10
Decimal
129781372
12
Duodecimal
37568b64
16
Hexadecimal
7bc4e7c
20
Vigesimal
20b2d8c
36
Base36
259ny4
md5
d891c4a1a0efb50d30953dbdce40e113
sha1
ced7a0948c78d3418516ec6fd759038b05d98603
sha256
eb036f4ea0992577c338001fd97aa278b63d57bf5ee482aea0f388f01b90a2ce
sha512
eb6aa0004d9b191df2b26be882401084c0c6e54c997de63a6f06e3f8bfe8b336cd8a5095d2d28d906104429fbcd712a9aed96f38a58f1dd027bec10367f98948
ripemd-160
5c6ff2fcf128968feddd0a0aed93cd6330a271c9
Diameter
259562744
Circumference
815440409.69601
Area
5.2914487577295E+16
Volume
9.1564197286111E+24
Surface area
2.1165795030918E+17
Circumference
815440409.69601
Perimeter
519125488
Area
16843204518202384
Diagonal
183538576.42579
Surface area
101059227109214304
Volume
2.1859341912489E+24
Space diagonal
224787930.18
Perimeter
389344116
Area
7.29332149695E+15
Altitude
112393965.09
Surface area
7.29332149695E+15
Volume
2.5761481497661E+23
Height
61179525.475263