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11284553 = 72412137
BaseRepresentation
bin101011000011…
…000001001001
3210020022111102
4223003001021
510342101203
61041511145
7164626400
oct53030111
923208442
1011284553
116408285
1239424b5
132451467
1416da637
15ecd888
hexac3049

11284553 has 18 divisors (see below), whose sum is σ = 13553118. Its totient is φ = 9367680.

The previous prime is 11284543. The next prime is 11284571. The reversal of 11284553 is 35548211.

11284553 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 3 ways, for example, as 182329 + 11102224 = 427^2 + 3332^2 .

It is not a de Polignac number, because 11284553 - 26 = 11284489 is a prime.

It is a super-2 number, since 2×112845532 = 254682272819618, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11284523) by changing a digit.

It is a polite number, since it can be written in 17 ways as a sum of consecutive naturals, for example, 82301 + ... + 82437.

It is an arithmetic number, because the mean of its divisors is an integer number (752951).

Almost surely, 211284553 is an apocalyptic number.

It is an amenable number.

11284553 is a deficient number, since it is larger than the sum of its proper divisors (2268565).

11284553 is an equidigital number, since it uses as much as digits as its factorization.

11284553 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 233 (or 185 counting only the distinct ones).

The product of its digits is 4800, while the sum is 29.

The square root of 11284553 is about 3359.2488743765. The cubic root of 11284553 is about 224.2994043175.

The spelling of 11284553 in words is "eleven million, two hundred eighty-four thousand, five hundred fifty-three".

Divisors: 1 7 41 49 137 287 959 1681 2009 5617 6713 11767 39319 82369 230297 275233 1612079 11284553