155087961 is an odd 9-digits composite number following 155087960
and preceding 155087962 . In scientific notation, it is written as 1.55087961 × 10^8.
The sum of its digits is 42. It has a total of 4 prime factors and 16 positive divisors.
There are 88375824 positive integers (up to 155087961) that are relatively prime to 155087961.
155087961 has 16 divisors, whose sum is 236980224
The reverse of 155087961 is 169780551
Previous prime number is 367
Is Prime? no
Number parity odd
Number length 9
Sum of Digits 42
Digital Root 6
Name
one hundred fifty-five million eighty-seven thousand nine hundred sixty-one
Scientific notation
1.55087961 × 10^8
Engineering notation
1.55087961 × 10^6
Prime Factorization
3 × 7 × 367 × 20123
Composite number
ω
Distinct Factors
4
Total number of distinct prime factors
Ω
Total Factors
4
Total number of prime factors
rad
Radical
155087961
Product of the distinct prime numbers
The prime factorization of 155087961 is 3 × 7 × 367 × 20123.
Since it has a total of 4 prime factors.
5 , 3 , 51 , 42 , 878 , 58 , 4992 , 1146 , 14538 , 47141 , 252955 , 678321 , 5393847 , 5657393 , 30892549 , 2019756 , 974807395 , 675940250 , 5065131477 , 2818047244
n×2
310175922
n×3
465263883
n×4
620351844
n×5
775439805
n÷2
77543980.5
n÷3
51695987
n÷3
38771990.25
n÷5
31017592.2
n2
24052275647137521
n3
3.7302183875245E+24
n4
5.7851196380588E+32
n5
8.972024088076E+40
2 √n
12453.431695721
3 √n
537.27012892764
4 √n
111.59494475881
5 √n
43.462591424112
1 , 3 , 7 , 21 , 367 , 1101 , 2569 , 7707 , 20123 , 60369 , 140861 , 422583 , 7385141 , 22155423 , 51695987 , 155087961
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
-155087960
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 155087961 can be divided by 16 positive divisors.
The sum of these divisors (counting 155087961) is 1, the average is 0.0625.
Base
System
Value
2
Binary
1001001111100111010001011001
3
Ternary
101210211021200120
4
Quaternary
21033213101121
5
Quinary
304200303321
6
Senary
23220023453
8
Octal
1117472131
10
Decimal
155087961
12
Duodecimal
43b31b89
16
Hexadecimal
93e7459
20
Vigesimal
2895ji1
36
Base36
2kc2mx
md5
a3433dcdad8f8833807d25a82c864034
sha1
7ea7358f5305a6e1ae697f3fc5bc9b2fb076f7f6
sha256
b4369e3cc3190d45d660d399115db09675b6f5c230dd7261fc6eeedf664a97d0
sha512
124cc1388975b2b1a7a16096e0b92f4d71deaa569ebb90c415654416bb4ec0e41d2c99d4e1c02171b21eb72529bb39983d04899c4e228262e4df15876fcafc28
ripemd-160
3f0c46a59d8cb839cf8b8491fdd9b7fdd5faf542
Diameter
310175922
Circumference
974446397.87564
Area
7.5562452475164E+16
Volume
1.5625102243377E+25
Surface area
3.0224980990066E+17
Circumference
974446397.87564
Perimeter
620351844
Area
24052275647137521
Diagonal
219327497.80699
Surface area
144313653882825126
Volume
3.7302183875245E+24
Space diagonal
268620228.09426
Perimeter
465263883
Area
1.0414940864623E+16
Altitude
134310114.04713
Surface area
1.0414940864623E+16
Volume
4.3961045285422E+23
Height
73109165.935663