157989904 is an even 9-digits composite number following 157989903
and preceding 157989905 . In scientific notation, it is written as 1.57989904 × 10^8.
The sum of its digits is 52. It has a total of 6 prime factors and 20 positive divisors.
There are 78903968 positive integers (up to 157989904) that are relatively prime to 157989904.
157989904 has 20 divisors, whose sum is 306458064
The reverse of 157989904 is 409989751
Previous prime number is 947
Is Prime? no
Number parity even
Number length 9
Sum of Digits 52
Digital Root 7
Name
one hundred fifty-seven million nine hundred eighty-nine thousand nine hundred four
Scientific notation
1.57989904 × 10^8
Engineering notation
1.57989904 × 10^6
Prime Factorization
2 × 2 × 2 × 2 × 947 × 10427
Composite number
ω
Distinct Factors
3
Total number of distinct prime factors
Ω
Total Factors
6
Total number of prime factors
rad
Radical
19748738
Product of the distinct prime numbers
The prime factorization of 157989904 is 2 × 2 × 2 × 2 × 947 × 10427.
Since it has a total of 6 prime factors.
10 , 2 , 84 , 54 , 863 , 668 , 1640 , 6006 , 69882 , 61953 , 57405 , 242424 , 6835119 , 9293767 , 63484241 , 15393913 , 710436721 , 258809692 , 1271381891 , 7991024496
n×2
315979808
n×3
473969712
n×4
631959616
n×5
789949520
n÷2
78994952
n÷3
52663301.333333
n÷3
39497476
n÷5
31597980.8
n2
24960809765929216
n3
3.9435559386814E+24
n4
6.2304202417091E+32
n5
9.8434349586727E+40
2 √n
12569.403486244
3 √n
540.60050252189
4 √n
112.11335106152
5 √n
43.62403840743
1 , 2 , 4 , 8 , 16 , 947 , 1894 , 3788 , 7576 , 10427 , 15152 , 20854 , 41708 , 83416 , 166832 , 9874369 , 19748738 , 39497476 , 78994952 , 157989904
20 divisors
τ
Total Divisors
20
Total number of the positive divisors of n
σ
Sum of Divisors
1
Sum of all the positive divisors of n
s
Aliquot Sum
-157989903
Sum of the proper positive divisors of n
A
Arithmetic Mean
0.05
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
20
Returns the total number of divisors (τ(n )) divided by the sum of the reciprocal of each divisors
The number 157989904 can be divided by 20 positive divisors.
The sum of these divisors (counting 157989904) is 1, the average is 0.05.
Base
System
Value
2
Binary
1001011010101011110000010000
3
Ternary
102000021201101221
4
Quaternary
21122223300100
5
Quinary
310421134104
6
Senary
23402134424
8
Octal
1132536020
10
Decimal
157989904
12
Duodecimal
44ab1414
16
Hexadecimal
96abc10
20
Vigesimal
2978ef4
36
Base36
2m29sg
md5
87c20538b72a214ec4b92aaba31d082f
sha1
da4f63091db0417cf0cad1eefab70006533ebb32
sha256
b4e8c4af03d9607fd5e4228d1a5d11c5d7c4fc9dcaf392d1d3db5d00ef24211e
sha512
e2706a14f70aec51aa65205b9f761cfe4ede4837fb2a22ab9816981de8e979a72605244fc1dba662876546f4852abab225b5232666fcc3950d734b212173edfa
ripemd-160
dc808ca21187424b158572544e734885038beaec
Diameter
315979808
Circumference
992679843.49551
Area
7.8416696588296E+16
Volume
1.6518728487976E+25
Surface area
3.1366678635318E+17
Circumference
992679843.49551
Perimeter
631959616
Area
24960809765929216
Diagonal
223431464.95482
Surface area
149764858595575296
Volume
3.9435559386814E+24
Space diagonal
273646540.81093
Perimeter
473969712
Area
1.0808347678163E+16
Altitude
136823270.40546
Surface area
1.0808347678163E+16
Volume
4.6475252437169E+23
Height
74477154.984941