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11000421 = 331932111
BaseRepresentation
bin101001111101…
…101001100101
3202200212202000
4221331221211
510304003141
61031435513
7162334125
oct51755145
922625660
1011000421
116233863
123825b99
132382033
141664c85
15e745b6
hexa7da65

11000421 has 16 divisors (see below), whose sum is σ = 16389120. Its totient is φ = 7292160.

The previous prime is 11000419. The next prime is 11000441. The reversal of 11000421 is 12400011.

It is a happy number.

It is not a de Polignac number, because 11000421 - 21 = 11000419 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (9).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11000401) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 4156 + ... + 6266.

It is an arithmetic number, because the mean of its divisors is an integer number (1024320).

Almost surely, 211000421 is an apocalyptic number.

It is an amenable number.

11000421 is a deficient number, since it is larger than the sum of its proper divisors (5388699).

11000421 is a wasteful number, since it uses less digits than its factorization.

11000421 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2313 (or 2307 counting only the distinct ones).

The product of its (nonzero) digits is 8, while the sum is 9.

The square root of 11000421 is about 3316.6882578862. The cubic root of 11000421 is about 222.4008462802.

Adding to 11000421 its reverse (12400011), we get a palindrome (23400432).

The spelling of 11000421 in words is "eleven million, four hundred twenty-one", and thus it is an aban number.

Divisors: 1 3 9 27 193 579 1737 2111 5211 6333 18999 56997 407423 1222269 3666807 11000421