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11287452 = 22311233367
BaseRepresentation
bin101011000011…
…101110011100
3210020110110210
4223003232130
510342144302
61041532420
7164641011
oct53035634
923213423
1011287452
11640a480
123944110
132452887
1416db708
15ece66c
hexac3b9c

11287452 has 48 divisors (see below), whose sum is σ = 28933632. Its totient is φ = 3396480.

The previous prime is 11287429. The next prime is 11287453. The reversal of 11287452 is 25478211.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11287453) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 30573 + ... + 30939.

It is an arithmetic number, because the mean of its divisors is an integer number (602784).

Almost surely, 211287452 is an apocalyptic number.

11287452 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 11287452, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (14466816).

11287452 is an abundant number, since it is smaller than the sum of its proper divisors (17646180).

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

11287452 is a wasteful number, since it uses less digits than its factorization.

11287452 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 618 (or 616 counting only the distinct ones).

The product of its digits is 4480, while the sum is 30.

The square root of 11287452 is about 3359.6803419373. The cubic root of 11287452 is about 224.3186101675.

The spelling of 11287452 in words is "eleven million, two hundred eighty-seven thousand, four hundred fifty-two".

Divisors: 1 2 3 4 6 11 12 22 33 44 66 132 233 367 466 699 734 932 1101 1398 1468 2202 2563 2796 4037 4404 5126 7689 8074 10252 12111 15378 16148 24222 30756 48444 85511 171022 256533 342044 513066 940621 1026132 1881242 2821863 3762484 5643726 11287452