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20050000000000 = 210511401
BaseRepresentation
bin1001000111100010000010…
…01000001011010000000000
32121222202112222021200021121
410203301001020023100000
510111444400000000000
6110350502015402024
74136364456014425
oct443610110132000
977882488250247
1020050000000000
116430180330093
1222b99a8523314
13b25926053759
144d45d498bd4c
1524b82e72ab1a
hex123c4120b400

20050000000000 has 264 divisors, whose sum is σ = 50225463661464. Its totient is φ = 8000000000000.

The previous prime is 20049999999979. The next prime is 20050000000033. The reversal of 20050000000000 is 5002.

It can be written as a sum of positive squares in 12 ways, for example, as 3601978860544 + 16448021139456 = 1897888^2 + 4055616^2 .

It is a sliding number, since 20050000000000 = 50000000000 + 20000000000000 and 1/50000000000 + 1/20000000000000 = 0.000000000020050000000000.

It is a congruent number.

It is an unprimeable number.

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 23 ways as a sum of consecutive naturals, for example, 49999999800 + ... + 50000000200.

Almost surely, 220050000000000 is an apocalyptic number.

20050000000000 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 20050000000000, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (25112731830732).

20050000000000 is an abundant number, since it is smaller than the sum of its proper divisors (30175463661464).

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

20050000000000 is an frugal number, since it uses more digits than its factorization.

20050000000000 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 476 (or 408 counting only the distinct ones).

The product of its (nonzero) digits is 10, while the sum is 7.

Adding to 20050000000000 its reverse (5002), we get a palindrome (20050000005002).

It can be divided in two parts, 200 and 50000000000, that multiplied together give a 13-th power (10000000000000 = 1013).

The spelling of 20050000000000 in words is "twenty trillion, fifty billion", and thus it is an aban number and an uban number.