1990287748 is an even 10-digits composite number following 1990287747
and preceding 1990287749 . In scientific notation, it is written as 1.990287748 × 10^9.
The sum of its digits is 55. It has a total of 5 prime factors and 24 positive divisors.
There are 945073920 positive integers (up to 1990287748) that are relatively prime to 1990287748.
1990287748 has 24 divisors, whose sum is 3662187480
The reverse of 1990287748 is 8477820991
Previous prime number is 61
Is Prime? no
Number parity even
Number length 10
Sum of Digits 55
Digital Root 1
Name
one billion nine hundred ninety million two hundred eighty-seven thousand seven hundred forty-eight
Scientific notation
1.990287748 × 10^9
Engineering notation
1.990287748 × 10^9
Prime Factorization
2 × 2 × 29 × 61 × 281273
Composite number
ω
Distinct Factors
4
Total number of distinct prime factors
Ω
Total Factors
5
Total number of prime factors
rad
Radical
995143874
Product of the distinct prime numbers
The prime factorization of 1990287748 is 2 × 2 × 29 × 61 × 281273.
Since it has a total of 5 prime factors.
2 , 1 , 26 , 20 , 87 , 31 , 1401 , 1237 , 63494 , 62312 , 355342 , 977613 , 4541438 , 9409490 , 82261198 , 29251627 , 267560317 , 526101149 , 6685276088 , 5165354138
n×2
3980575496
n×3
5970863244
n×4
7961150992
n×5
9951438740
n÷2
995143874
n÷3
663429249.33333
n÷3
497571937
n÷5
398057549.6
n2
3961245319838911504
n3
7.8840180268977E+27
n4
1.5691464483946E+37
n5
3.1230529510574E+46
2 √n
44612.641123341
3 √n
1257.8782945693
4 √n
211.21704742596
5 √n
72.407436806832
1 , 2 , 4 , 29 , 58 , 61 , 116 , 122 , 244 , 1769 , 3538 , 7076 , 281273 , 562546 , 1125092 , 8156917 , 16313834 , 17157653 , 32627668 , 34315306 , 68630612 , 497571937 , 995143874 , 1990287748
24 divisors
τ
Total Divisors
24
Total number of the positive divisors of n
σ
Sum of Divisors
1
Sum of all the positive divisors of n
s
Aliquot Sum
-1990287747
Sum of the proper positive divisors of n
A
Arithmetic Mean
0.041666666666667
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
24
Returns the total number of divisors (τ(n )) divided by the sum of the reciprocal of each divisors
The number 1990287748 can be divided by 24 positive divisors.
The sum of these divisors (counting 1990287748) is 1, the average is 0.041666666666667.
Base
System
Value
2
Binary
1110110101000010110000110000100
3
Ternary
12010201002002112001
4
Quaternary
1312220112012010
5
Quinary
13034003201443
6
Senary
525254435044
8
Octal
16650260604
10
Decimal
1990287748
12
Duodecimal
476662a84
16
Hexadecimal
76a16184
20
Vigesimal
1b1j5j78
36
Base36
wwyrus
md5
3832c0142859f6d9150df077ad3a9a78
sha1
f59da5a2b5de67892834a24ce236b801166b8ba0
sha256
6819c3dc3a9ea84fe6cf85ac0145582106404176c3df4e0566e3948d0d695a94
sha512
abe2654783e8a159af7e49c331b9bff76e642dca5a08bbc4cba76cf5b00246ddf92d531f11b1d9ba958398aeb576a24df7319d58f8a23a3cf644e4d94fb75970
ripemd-160
dd6ae611a0ee8661886b2d45a1653b3943e7f27c
Diameter
3980575496
Circumference
12505346735.293
Area
1.2444619195873E+19
Volume
3.3024497485429E+28
Surface area
4.9778476783491E+19
Circumference
12505346735.293
Perimeter
7961150992
Area
3961245319838911504
Diagonal
2814691926.2466
Surface area
2.3767471919033E+19
Volume
7.8840180268977E+27
Space diagonal
3447279501.2178
Perimeter
5970863244
Area
1.7152695388014E+18
Altitude
1723639750.6089
Surface area
1.7152695388014E+18
Volume
9.2914043496939E+26
Height
938230642.0822