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11381384 = 2371671217
BaseRepresentation
bin101011011010…
…101010001000
3210102020022202
4223122222020
510403201014
61043535332
7165511610
oct53325210
923366282
1011381384
116474003
12398a548
132486561
141723a40
15eec3de
hexadaa88

11381384 has 32 divisors (see below), whose sum is σ = 24554880. Its totient is φ = 4844544.

The previous prime is 11381353. The next prime is 11381393. The reversal of 11381384 is 48318311.

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 7 ways as a sum of consecutive naturals, for example, 8744 + ... + 9960.

It is an arithmetic number, because the mean of its divisors is an integer number (767340).

Almost surely, 211381384 is an apocalyptic number.

11381384 is a gapful number since it is divisible by the number (14) formed by its first and last digit.

It is an amenable number.

11381384 is an abundant number, since it is smaller than the sum of its proper divisors (13173496).

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

11381384 is a wasteful number, since it uses less digits than its factorization.

11381384 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1397 (or 1393 counting only the distinct ones).

The product of its digits is 2304, while the sum is 29.

The square root of 11381384 is about 3373.6306851818. The cubic root of 11381384 is about 224.9391374476.

Adding to 11381384 its reverse (48318311), we get a palindrome (59699695).

The spelling of 11381384 in words is "eleven million, three hundred eighty-one thousand, three hundred eighty-four".

Divisors: 1 2 4 7 8 14 28 56 167 334 668 1169 1217 1336 2338 2434 4676 4868 8519 9352 9736 17038 34076 68152 203239 406478 812956 1422673 1625912 2845346 5690692 11381384