Search a number
-
+
20201211110000 = 24542020121111
BaseRepresentation
bin1001001011111011101100…
…00000110010001001110000
32122112012212010122221202002
410211331312000302021300
510121434040021010000
6110544150330313132
74153326562155554
oct445756600621160
978465763587662
1020201211110000
116489316033098
1223231688887a8
13b36c734b723b
144dba5b121864
1525072e7dc8d5
hex125f76032270

20201211110000 has 50 divisors (see below), whose sum is σ = 48909152242632. Its totient is φ = 8080484440000.

The previous prime is 20201211109999. The next prime is 20201211110009. The reversal of 20201211110000 is 1111210202.

It is a tau number, because it is divible by the number of its divisors (50).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20201211110009) by changing a digit.

It is a polite number, since it can be written in 9 ways as a sum of consecutive naturals, for example, 1010050556 + ... + 1010070555.

Almost surely, 220201211110000 is an apocalyptic number.

20201211110000 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

20201211110000 is an abundant number, since it is smaller than the sum of its proper divisors (28707941132632).

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

20201211110000 is an equidigital number, since it uses as much as digits as its factorization.

20201211110000 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2020121139 (or 2020121118 counting only the distinct ones).

The product of its (nonzero) digits is 8, while the sum is 11.

Adding to 20201211110000 its reverse (1111210202), we get a palindrome (20202322320202).

The spelling of 20201211110000 in words is "twenty trillion, two hundred one billion, two hundred eleven million, one hundred ten thousand".

Divisors: 1 2 4 5 8 10 16 20 25 40 50 80 100 125 200 250 400 500 625 1000 1250 2000 2500 5000 10000 2020121111 4040242222 8080484444 10100605555 16160968888 20201211110 32321937776 40402422220 50503027775 80804844440 101006055550 161609688880 202012111100 252515138875 404024222200 505030277750 808048444400 1010060555500 1262575694375 2020121111000 2525151388750 4040242222000 5050302777500 10100605555000 20201211110000