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11382909 = 318120963
BaseRepresentation
bin101011011011…
…000001111101
3210102022102020
4223123001331
510403223114
61043550353
7165516216
oct53330175
923368366
1011382909
11647516a
12398b3b9
132487165
14172440d
15eecaa9
hexadb07d

11382909 has 8 divisors (see below), whose sum is σ = 15261792. Its totient is φ = 7546320.

The previous prime is 11382893. The next prime is 11382937. The reversal of 11382909 is 90928311.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 11382909 - 24 = 11382893 is a prime.

It is a Smith number, since the sum of its digits (33) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a nialpdrome in base 15.

It is a self number, because there is not a number n which added to its sum of digits gives 11382909.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11382949) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 9939 + ... + 11024.

It is an arithmetic number, because the mean of its divisors is an integer number (1907724).

Almost surely, 211382909 is an apocalyptic number.

It is an amenable number.

11382909 is a deficient number, since it is larger than the sum of its proper divisors (3878883).

11382909 is a wasteful number, since it uses less digits than its factorization.

11382909 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 21147.

The product of its (nonzero) digits is 3888, while the sum is 33.

The square root of 11382909 is about 3373.8566952377. The cubic root of 11382909 is about 224.9491835857.

The spelling of 11382909 in words is "eleven million, three hundred eighty-two thousand, nine hundred nine".

Divisors: 1 3 181 543 20963 62889 3794303 11382909