215689897 is an odd 9-digits composite number following 215689896
and preceding 215689898 . In scientific notation, it is written as 2.15689897 × 10^8.
The sum of its digits is 55. It has a total of 4 prime factors and 16 positive divisors.
There are 200229120 positive integers (up to 215689897) that are relatively prime to 215689897.
215689897 has 16 divisors, whose sum is 231524352
The reverse of 215689897 is 798986512
Previous prime number is 383
Is Prime? no
Number parity odd
Number length 9
Sum of Digits 55
Digital Root 1
Name
two hundred fifteen million six hundred eighty-nine thousand eight hundred ninety-seven
Scientific notation
2.15689897 × 10^8
Engineering notation
2.15689897 × 10^6
Prime Factorization
17 × 211 × 383 × 157
Composite number
ω
Distinct Factors
4
Total number of distinct prime factors
Ω
Total Factors
4
Total number of prime factors
rad
Radical
215689897
Product of the distinct prime numbers
The prime factorization of 215689897 is 17 × 211 × 383 × 157.
Since it has a total of 4 prime factors.
10 , 7 , 18 , 33 , 635 , 618 , 3385 , 175 , 10731 , 15198 , 487066 , 915575 , 2621379 , 5992943 , 72761978 , 20510231 , 744305459 , 262136267 , 774695137 , 3964991200
n×2
431379794
n×3
647069691
n×4
862759588
n×5
1078449485
n÷2
107844948.5
n÷3
71896632.333333
n÷3
53922474.25
n÷5
43137979.4
n2
46522131667870609
n3
1.0034353787663E+25
n4
2.1643087349227E+33
n5
4.6681952811168E+41
2 √n
14686.384749148
3 √n
599.71273007453
4 √n
121.18739517437
5 √n
46.426501741817
1 , 17 , 157 , 211 , 383 , 2669 , 3587 , 6511 , 33127 , 60131 , 80813 , 563159 , 1022227 , 1373821 , 12687641 , 215689897
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
-215689896
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 215689897 can be divided by 16 positive divisors.
The sum of these divisors (counting 215689897) is 1, the average is 0.0625.
Base
System
Value
2
Binary
1100110110110010101010101001
3
Ternary
120000212011220201
4
Quaternary
30312302222221
5
Quinary
420204034042
6
Senary
33222552201
8
Octal
1466625251
10
Decimal
215689897
12
Duodecimal
60298661
16
Hexadecimal
cdb2aa9
20
Vigesimal
37814eh
36
Base36
3keze1
md5
ff8e1af7163133c653a83117f755ea22
sha1
682a666532947d03d14472a8ea2ff668c46e8907
sha256
8323452c131054cb5812294eead26ae4f74f8955c16bec1507d387bde3da2ff8
sha512
0f4c66f616fe37196dbe1a4284c27f001d4017f392b0246ba80958203f92bf521850b9d89e9c7f302c3321de05304db5d4523e5d1e67fd3b1bf2e410d7965a0c
ripemd-160
34a77a689d6b8365d1fdca6c25f22a7faf047528
Diameter
431379794
Circumference
1355219591.7375
Area
1.4615358707712E+17
Volume
4.2031802857126E+25
Surface area
5.8461434830848E+17
Circumference
1355219591.7375
Perimeter
862759588
Area
46522131667870609
Diagonal
305031577.60426
Surface area
279132790007223654
Volume
1.0034353787663E+25
Space diagonal
373585860.2833
Perimeter
647069691
Area
2.014467393129E+16
Altitude
186792930.14165
Surface area
2.014467393129E+16
Volume
1.1825599346803E+24
Height
101677192.53475