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11103200421 = 37681481847
BaseRepresentation
bin10100101011100110…
…10110010010100101
31001122210122000121020
422111303112102211
5140214404403141
65033432041353
7542101434465
oct122563262245
931583560536
1011103200421
1147885158a5
12219a533259
13107c41baa1
14774895ba5
1544eb77266
hex295cd64a5

11103200421 has 8 divisors (see below), whose sum is σ = 14806225344. Its totient is φ = 7401154560.

The previous prime is 11103200401. The next prime is 11103200431. The reversal of 11103200421 is 12400230111.

11103200421 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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

It is not a de Polignac number, because 11103200421 - 26 = 11103200357 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 11103200421.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11103200401) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 217881 + ... + 263966.

It is an arithmetic number, because the mean of its divisors is an integer number (1850778168).

Almost surely, 211103200421 is an apocalyptic number.

It is an amenable number.

11103200421 is a deficient number, since it is larger than the sum of its proper divisors (3703024923).

11103200421 is an equidigital number, since it uses as much as digits as its factorization.

11103200421 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 489531.

The product of its (nonzero) digits is 48, while the sum is 15.

Adding to 11103200421 its reverse (12400230111), we get a palindrome (23503430532).

The spelling of 11103200421 in words is "eleven billion, one hundred three million, two hundred thousand, four hundred twenty-one".

Divisors: 1 3 7681 23043 481847 1445541 3701066807 11103200421