Search a number
-
+
20302140000 = 25354338369
BaseRepresentation
bin10010111010000110…
…100001001001100000
31221101220001120102010
4102322012201021200
5313034321440000
613154321152520
71316051225352
oct227206411140
957356046363
1020302140000
1186790352aa
123b2718b740
131bb71747bc
14da84950d2
157dc54dd50
hex4ba1a1260

20302140000 has 120 divisors (see below), whose sum is σ = 66595276440. Its totient is φ = 5413888000.

The previous prime is 20302139989. The next prime is 20302140007. The reversal of 20302140000 is 4120302.

It is a tau number, because it is divible by the number of its divisors (120).

It is a Harshad number since it is a multiple of its sum of digits (12).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20302140007) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 19 ways as a sum of consecutive naturals, for example, 109185 + ... + 229184.

It is an arithmetic number, because the mean of its divisors is an integer number (554960637).

Almost surely, 220302140000 is an apocalyptic number.

20302140000 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

20302140000 is an abundant number, since it is smaller than the sum of its proper divisors (46293136440).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

20302140000 is an equidigital number, since it uses as much as digits as its factorization.

20302140000 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 338402 (or 338379 counting only the distinct ones).

The product of its (nonzero) digits is 48, while the sum is 12.

Adding to 20302140000 its reverse (4120302), we get a palindrome (20306260302).

The spelling of 20302140000 in words is "twenty billion, three hundred two million, one hundred forty thousand".

Divisors: 1 2 3 4 5 6 8 10 12 15 16 20 24 25 30 32 40 48 50 60 75 80 96 100 120 125 150 160 200 240 250 300 375 400 480 500 600 625 750 800 1000 1200 1250 1500 1875 2000 2400 2500 3000 3750 4000 5000 6000 7500 10000 12000 15000 20000 30000 60000 338369 676738 1015107 1353476 1691845 2030214 2706952 3383690 4060428 5075535 5413904 6767380 8120856 8459225 10151070 10827808 13534760 16241712 16918450 20302140 25377675 27069520 32483424 33836900 40604280 42296125 50755350 54139040 67673800 81208560 84592250 101510700 126888375 135347600 162417120 169184500 203021400 211480625 253776750 270695200 338369000 406042800 422961250 507553500 634441875 676738000 812085600 845922500 1015107000 1268883750 1353476000 1691845000 2030214000 2537767500 3383690000 4060428000 5075535000 6767380000 10151070000 20302140000