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11447428 = 2211872411
BaseRepresentation
bin101011101010…
…110010000100
3210112120220211
4223222302010
510412304203
61045205204
7166205266
oct53526204
923476824
1011447428
116509693
123a00804
1324aa635
14173db36
151011c6d
hexaeac84

11447428 has 12 divisors (see below), whose sum is σ = 20058192. Its totient is φ = 5716520.

The previous prime is 11447407. The next prime is 11447453. The reversal of 11447428 is 82474411.

It is a happy number.

It is a self number, because there is not a number n which added to its sum of digits gives 11447428.

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, 3543 + ... + 5953.

It is an arithmetic number, because the mean of its divisors is an integer number (1671516).

It is a vampire number, since it can be written as 24114748 (with its own digits).

Almost surely, 211447428 is an apocalyptic number.

It is an amenable number.

11447428 is a deficient number, since it is larger than the sum of its proper divisors (8610764).

11447428 is a wasteful number, since it uses less digits than its factorization.

11447428 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3602 (or 3600 counting only the distinct ones).

The product of its digits is 7168, while the sum is 31.

The square root of 11447428 is about 3383.4047939908. The cubic root of 11447428 is about 225.3733915299.

The spelling of 11447428 in words is "eleven million, four hundred forty-seven thousand, four hundred twenty-eight".

Divisors: 1 2 4 1187 2374 2411 4748 4822 9644 2861857 5723714 11447428