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11288925 = 3252131383
BaseRepresentation
bin101011000100…
…000101011101
3210020112111100
4223010011131
510342221200
61041543313
7164645214
oct53040535
923215440
1011288925
11641059a
123944b39
13245344b
1416dc07b
15eced00
hexac415d

11288925 has 36 divisors (see below), whose sum is σ = 20427264. Its totient is φ = 5959200.

The previous prime is 11288923. The next prime is 11288999. The reversal of 11288925 is 52988211.

It is not a de Polignac number, because 11288925 - 21 = 11288923 is a prime.

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 11288925.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11288923) by changing a digit.

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 35 ways as a sum of consecutive naturals, for example, 29284 + ... + 29666.

It is an arithmetic number, because the mean of its divisors is an integer number (567424).

Almost surely, 211288925 is an apocalyptic number.

11288925 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

11288925 is a deficient number, since it is larger than the sum of its proper divisors (9138339).

11288925 is a wasteful number, since it uses less digits than its factorization.

11288925 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 530 (or 522 counting only the distinct ones).

The product of its digits is 11520, while the sum is 36.

The square root of 11288925 is about 3359.8995520700. The cubic root of 11288925 is about 224.3283675199.

The spelling of 11288925 in words is "eleven million, two hundred eighty-eight thousand, nine hundred twenty-five".

Divisors: 1 3 5 9 15 25 45 75 131 225 383 393 655 1149 1179 1915 1965 3275 3447 5745 5895 9575 9825 17235 28725 29475 50173 86175 150519 250865 451557 752595 1254325 2257785 3762975 11288925