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11028972 = 223919081
BaseRepresentation
bin101010000100…
…100111101100
3202202022220110
4222010213230
510310411342
61032220020
7162513303
oct52044754
922668813
1011028972
116253259
12383a610
132392026
14167143a
15e7cc9c
hexa849ec

11028972 has 12 divisors (see below), whose sum is σ = 25734296. Its totient is φ = 3676320.

The previous prime is 11028917. The next prime is 11028989. The reversal of 11028972 is 27982011.

It is a tau number, because it is divible by the number of its divisors (12).

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 459529 + ... + 459552.

Almost surely, 211028972 is an apocalyptic number.

11028972 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

11028972 is an abundant number, since it is smaller than the sum of its proper divisors (14705324).

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

11028972 is a wasteful number, since it uses less digits than its factorization.

11028972 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 919088 (or 919086 counting only the distinct ones).

The product of its (nonzero) digits is 2016, while the sum is 30.

The square root of 11028972 is about 3320.9896115465. The cubic root of 11028972 is about 222.5930898612.

The spelling of 11028972 in words is "eleven million, twenty-eight thousand, nine hundred seventy-two".

Divisors: 1 2 3 4 6 12 919081 1838162 2757243 3676324 5514486 11028972