161987773 is an odd 9-digits prime number following 161987772
and preceding 161987774 . In scientific notation, it is written as 1.61987773 × 10^8.
The sum of its digits is 49. It has a total of 1 prime factors and 2 positive divisors.
There are 161987772 positive integers (up to 161987773) that are relatively prime to 161987773.
161987773 has 2 divisors, whose sum is 161987774
The reverse of 161987773 is 377789161
Previous prime number is 1
Is Prime? yes Number parity odd Number length 9 Sum of Digits 49 Digital Root 4
Name
one hundred sixty-one million nine hundred eighty-seven thousand seven hundred seventy-three
Scientific notation
1.61987773 × 10^8
Engineering notation
1.61987773 × 10^6
Prime Factorization
161987773
Composite number
ω Distinct Factors
1 Total number of distinct prime factors
Ω Total Factors
1 Total number of prime factors
rad Radical
161987773 Product of the distinct prime numbers
The prime factorization of 161987773 is 161987773.
Since it has a total of 1 prime factors.
2 , 7 , 31 , 98 , 287 , 748 , 2978 , 2917 , 4617 , 5013 , 353502 , 343817 , 4862601 , 4078797 , 35979821 , 74066043 , 198180604 , 954449318 , 6912243260 , 609357839
n×2
323975546
n×3
485963319
n×4
647951092
n×5
809938865
n÷2
80993886.5
n÷3
53995924.333333
n÷3
40496943.25
n÷5
32397554.6
n2
26240038601499529
n3
4.2505654164909E+24
n4
6.8853962580819E+32
n5
1.1153500060692E+41
2 √n12727.441730371
3 √n545.12246273083
4 √n112.81596398725
5 √n43.842614711711
2 divisors
τ Total Divisors
2 Total number of the positive divisors of n
σ Sum of Divisors
161987774 Sum of all the positive divisors of n
s Aliquot Sum
1 Sum of the proper positive divisors of n
A Arithmetic Mean
80993887 Returns the sum of divisors (σ(n )) divided by the total number of divisors (τ(n ))
G Geometric Mean
12727.441769657 Returns the nth root of the product of n divisors
H Harmonic Mean
1.9999999876534 Returns the total number of divisors (τ(n )) divided by the sum of the reciprocal of each divisors
The number 161987773 can be divided by 2 positive divisors.
The sum of these divisors (counting 161987773) is 161987774, the average is 80993887.
Base
System
Value
2
Binary
1001101001111011110010111101
3
Ternary
102021210211110011
4
Quaternary
21221323302331
5
Quinary
312432102043
6
Senary
24023543221
8
Octal
1151736275
10
Decimal
161987773
12
Duodecimal
462bab11
16
Hexadecimal
9a7bcbd
20
Vigesimal
2ac898d
36
Base36
2ofykd
md5
90b93227983bddc3ab0c8745d0bf7d58
sha1
637005236ee9f875c9f9496180eb8f9da2621979
sha256
c757fd702574404c24f27d6d8cdc2581914d8a493703ec73a36de690ab00aace
sha512
a20bff94d78fe6ac94ca0ce577560718456888f85fb88cbe521530a77cbb5e76e904e620209b7441f1671ca165ee9f2de6203dc53a6762972328ba453d08b7ac
ripemd-160
5514ef0622e25e66c2bf4956ef1918d69c53a3bb
Diameter
323975546
Circumference
1017799195.2563
Area
8.2435512500384E+16
Volume
1.7804726781401E+25
Surface area
3.2974205000153E+17
Circumference
1017799195.2563
Perimeter
647951092
Area
26240038601499529
Diagonal
229085305.51521
Surface area
157440231608997174
Volume
4.2505654164909E+24
Space diagonal
280571053.04093
Perimeter
485963319
Area
1.1362270012591E+16
Altitude
140285526.52047
Surface area
1.1362270012591E+16
Volume
5.0093393831296E+23
Height
76361768.505071