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11285020 = 225564251
BaseRepresentation
bin101011000011…
…001000011100
3210020100010201
4223003020130
510342110040
61041513244
7164630635
oct53031034
923210121
1011285020
11640866a
123942824
132451736
1416da88c
15ecda9a
hexac321c

11285020 has 12 divisors (see below), whose sum is σ = 23698584. Its totient is φ = 4514000.

The previous prime is 11285017. The next prime is 11285063. The reversal of 11285020 is 2058211.

11285020 is an esthetic number in base 9, because in such base its adjacent digits differ by 1.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 282106 + ... + 282145.

It is an arithmetic number, because the mean of its divisors is an integer number (1974882).

Almost surely, 211285020 is an apocalyptic number.

11285020 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

11285020 is an abundant number, since it is smaller than the sum of its proper divisors (12413564).

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

11285020 is a wasteful number, since it uses less digits than its factorization.

11285020 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 564260 (or 564258 counting only the distinct ones).

The product of its (nonzero) digits is 160, while the sum is 19.

The square root of 11285020 is about 3359.3183832438. The cubic root of 11285020 is about 224.3024984107.

The spelling of 11285020 in words is "eleven million, two hundred eighty-five thousand, twenty".

Divisors: 1 2 4 5 10 20 564251 1128502 2257004 2821255 5642510 11285020