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11881384 = 231978167
BaseRepresentation
bin101101010100…
…101110101000
3211100122012021
4231110232220
511020201014
61102354224
7202663414
oct55245650
924318167
1011881384
116785729
123b8b974
132600008
141813d44
15109a624
hexb54ba8

11881384 has 16 divisors (see below), whose sum is σ = 23450400. Its totient is φ = 5627952.

The previous prime is 11881379. The next prime is 11881391. The reversal of 11881384 is 48318811.

11881384 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 38932 + ... + 39235.

It is an arithmetic number, because the mean of its divisors is an integer number (1465650).

Almost surely, 211881384 is an apocalyptic number.

It is an amenable number.

11881384 is a deficient number, since it is larger than the sum of its proper divisors (11569016).

11881384 is a wasteful number, since it uses less digits than its factorization.

11881384 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 78192 (or 78188 counting only the distinct ones).

The product of its digits is 6144, while the sum is 34.

The square root of 11881384 is about 3446.9383516390. The cubic root of 11881384 is about 228.1860080528.

The spelling of 11881384 in words is "eleven million, eight hundred eighty-one thousand, three hundred eighty-four".

Divisors: 1 2 4 8 19 38 76 152 78167 156334 312668 625336 1485173 2970346 5940692 11881384