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11913383 = 13786959
BaseRepresentation
bin101101011100…
…100010100111
3211102021002102
4231130202213
511022212013
61103202315
7203155616
oct55344247
924367072
1011913383
1167a7779
123ba639b
132611751
14182187d
1510a4d58
hexb5c8a7

11913383 has 4 divisors (see below), whose sum is σ = 12000480. Its totient is φ = 11826288.

The previous prime is 11913367. The next prime is 11913389. The reversal of 11913383 is 38331911.

11913383 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 38331911 = 192017469.

It is a cyclic number.

It is not a de Polignac number, because 11913383 - 24 = 11913367 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11913389) 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 3 ways as a sum of consecutive naturals, for example, 43343 + ... + 43616.

It is an arithmetic number, because the mean of its divisors is an integer number (3000120).

Almost surely, 211913383 is an apocalyptic number.

11913383 is a deficient number, since it is larger than the sum of its proper divisors (87097).

11913383 is an equidigital number, since it uses as much as digits as its factorization.

11913383 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 87096.

The product of its digits is 1944, while the sum is 29.

The square root of 11913383 is about 3451.5768860044. The cubic root of 11913383 is about 228.3906749740.

The spelling of 11913383 in words is "eleven million, nine hundred thirteen thousand, three hundred eighty-three".

Divisors: 1 137 86959 11913383