Search a number
-
+
20050250011 = 117417245753
BaseRepresentation
bin10010101011000101…
…101000100100011011
31220202100002020022021
4102223011220210123
5312030331000021
613113322235311
71306602212251
oct225305504433
956670066267
1020050250011
118559930660
123a76955b37
131b76c1ca7c
14d82c465d1
157c5394c41
hex4ab16891b

20050250011 has 8 divisors (see below), whose sum is σ = 21876038064. Its totient is φ = 18224968320.

The previous prime is 20050249997. The next prime is 20050250039. The reversal of 20050250011 is 11005205002.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 20050250011 - 213 = 20050241819 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (20050250071) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 41290 + ... + 204463.

It is an arithmetic number, because the mean of its divisors is an integer number (2734504758).

Almost surely, 220050250011 is an apocalyptic number.

20050250011 is a deficient number, since it is larger than the sum of its proper divisors (1825788053).

20050250011 is a wasteful number, since it uses less digits than its factorization.

20050250011 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 253181.

The product of its (nonzero) digits is 100, while the sum is 16.

Adding to 20050250011 its reverse (11005205002), we get a palindrome (31055455013).

The spelling of 20050250011 in words is "twenty billion, fifty million, two hundred fifty thousand, eleven".

Divisors: 1 11 7417 81587 245753 2703283 1822750001 20050250011