161878139 is an odd 9-digits prime number following 161878138
and preceding 161878140 . In scientific notation, it is written as 1.61878139 × 10^8.
The sum of its digits is 44. It has a total of 1 prime factors and 2 positive divisors.
There are 161878138 positive integers (up to 161878139) that are relatively prime to 161878139.
161878139 has 2 divisors, whose sum is 161878140
The reverse of 161878139 is 931878161
Previous prime number is 1
Is Prime? yes Number parity odd Number length 9 Sum of Digits 44 Digital Root 8
Name
one hundred sixty-one million eight hundred seventy-eight thousand one hundred thirty-nine
Scientific notation
1.61878139 × 10^8
Engineering notation
1.61878139 × 10^6
Prime Factorization
161878139
Composite number
ω Distinct Factors
1 Total number of distinct prime factors
Ω Total Factors
1 Total number of prime factors
rad Radical
161878139 Product of the distinct prime numbers
The prime factorization of 161878139 is 161878139.
Since it has a total of 1 prime factors.
2 , 8 , 51 , 6 , 196 , 694 , 2037 , 3556 , 24756 , 69092 , 129138 , 642820 , 6162495 , 1631011 , 18320909 , 2048627 , 614329472 , 610745245 , 9801178393 , 9867675524
n×2
323756278
n×3
485634417
n×4
647512556
n×5
809390695
n÷2
80939069.5
n÷3
53959379.666667
n÷3
40469534.75
n÷5
32375627.8
n2
26204531886103321
n3
4.2419408550886E+24
n4
6.8667749136981E+32
n5
1.1115807439613E+41
2 √n12723.134008569
3 √n544.99945459082
4 √n112.79687056195
5 √n43.836678531562
2 divisors
τ Total Divisors
2 Total number of the positive divisors of n
σ Sum of Divisors
161878140 Sum of all the positive divisors of n
s Aliquot Sum
1 Sum of the proper positive divisors of n
A Arithmetic Mean
80939070 Returns the sum of divisors (σ(n )) divided by the total number of divisors (τ(n ))
G Geometric Mean
12723.134047867 Returns the nth root of the product of n divisors
H Harmonic Mean
1.999999987645 Returns the total number of divisors (τ(n )) divided by the sum of the reciprocal of each divisors
The number 161878139 can be divided by 2 positive divisors.
The sum of these divisors (counting 161878139) is 161878140, the average is 80939070.
Base
System
Value
2
Binary
1001101001100001000001111011
3
Ternary
102021121021001122
4
Quaternary
21221201001323
5
Quinary
312420100024
6
Senary
24021335455
8
Octal
1151410173
10
Decimal
161878139
12
Duodecimal
4626758b
16
Hexadecimal
9a6107b
20
Vigesimal
2abef6j
36
Base36
2odlyz
md5
e6e9863ffad919cf5f5e18f028e9699e
sha1
7a71b465a34069b512fb9d4d35602a1c854f8423
sha256
3895a9c82e9b5743041c3aa3968f363700112225079be307a04efa7c36b455e3
sha512
69052019b3980e677dab1758fa3bd70128b70948adbb5e72f9ae786dd7094d24b3b5a611c109bc60c1d402ff485c1a482d929a7c7b8a223ce0a2a72724e7fcb8
ripemd-160
0d9106b5acc06d9f395db6baea7d8d52bc94f19c
Diameter
323756278
Circumference
1017110344.5184
Area
8.2323964864142E+16
Volume
1.7768600303078E+25
Surface area
3.2929585945657E+17
Circumference
1017110344.5184
Perimeter
647512556
Area
26204531886103321
Diagonal
228930259.62552
Surface area
157227191316619926
Volume
4.2419408550886E+24
Space diagonal
280381161.3827
Perimeter
485634417
Area
1.1346895153822E+16
Altitude
140190580.69135
Surface area
1.1346895153822E+16
Volume
4.9991752400423E+23
Height
76310086.541839