21998977 is an odd 8-digits composite number following 21998976
and preceding 21998978 . In scientific notation, it is written as 2.1998977 × 10^7.
The sum of its digits is 52. It has a total of 4 prime factors and 16 positive divisors.
There are 15822720 positive integers (up to 21998977) that are relatively prime to 21998977.
21998977 has 16 divisors, whose sum is 29538432
The reverse of 21998977 is 77989912
Previous prime number is 13
Is Prime? no
Number parity odd
Number length 8
Sum of Digits 52
Digital Root 7
Name
twenty-one million nine hundred ninety-eight thousand nine hundred seventy-seven
Scientific notation
2.1998977 × 10^7
Engineering notation
2.1998977 × 10^6
Prime Factorization
7 × 11 × 13 × 21977
Composite number
ω
Distinct Factors
4
Total number of distinct prime factors
Ω
Total Factors
4
Total number of prime factors
rad
Radical
21998977
Product of the distinct prime numbers
The prime factorization of 21998977 is 7 × 11 × 13 × 21977.
Since it has a total of 4 prime factors.
7 , 8 , 48 , 83 , 745 , 838 , 2580 , 1588 , 38113 , 74543 , 359839 , 931947 , 2019837 , 5553139 , 26125042 , 55612180 , 119352528 , 332172197 , 2897643840 , 1447365946
n×2
43997954
n×3
65996931
n×4
87995908
n×5
109994885
n÷2
10999488.5
n÷3
7332992.3333333
n÷3
5499744.25
n÷5
4399795.4
n2
483954989046529
n3
1.064651467307E+22
n4
2.3421243142303E+29
n5
5.1524338919892E+36
2 √n
4690.3067063893
3 √n
280.19958983726
4 √n
68.485813906161
5 √n
29.409016236731
1 , 7 , 11 , 13 , 77 , 91 , 143 , 1001 , 21977 , 153839 , 241747 , 285701 , 1692229 , 1999907 , 3142711 , 21998977
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
-21998976
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 21998977 can be divided by 16 positive divisors.
The sum of these divisors (counting 21998977) is 1, the average is 0.0625.
Base
System
Value
2
Binary
1010011111010110110000001
3
Ternary
1112101122220221
4
Quaternary
1103322312001
5
Quinary
21112431402
6
Senary
2103303041
8
Octal
123726601
10
Decimal
21998977
12
Duodecimal
744aa81
16
Hexadecimal
14fad81
20
Vigesimal
6h9h8h
36
Base36
d3iip
md5
de83317b1a06c0bed97f2956c3f8f7b0
sha1
0bdadff898a7e38e6ccdf9c97ef44d9f093a5536
sha256
f8967e7f14a5a3086d469384c53bd90c9172514955684824fa0aa4c4da01950b
sha512
177ae575fb273fa41e46b3fe609de8c5484315560b1860db426a23f984db2666e68de2a00afa94d8f18f531005ce22fd8db9d9cf570907e456778ffa239afaaa
ripemd-160
ac76358a6af31a81b1ffcfc0feda50d3a42636de
Diameter
43997954
Circumference
138223649.05938
Area
1.5203894382567E+15
Volume
4.459601637767E+22
Surface area
6.0815577530268E+15
Circumference
138223649.05938
Perimeter
87995908
Area
483954989046529
Diagonal
31111251.631734
Surface area
2903729934279174
Volume
1.064651467307E+22
Space diagonal
38103345.878539
Perimeter
65996931
Area
2.0955865740126E+14
Altitude
19051672.93927
Surface area
2.0955865740126E+14
Volume
1.2547037868883E+21
Height
10370417.210578