Search a number
-
+
11385992 = 2311932
BaseRepresentation
bin101011011011…
…110010001000
3210102110122102
4223123302020
510403322432
61044012532
7165531212
oct53336210
923373572
1011385992
116477512
123991148
132488697
1417255b2
15eed962
hexadbc88

11385992 has 12 divisors (see below), whose sum is σ = 21366645. Its totient is φ = 5688224.

The previous prime is 11385991. The next prime is 11386003. The reversal of 11385992 is 29958311.

It is a powerful number, because all its prime factors have an exponent greater than 1 and also an Achilles number because it is not a perfect power.

11385992 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 2 ways, for example, as 11383876 + 2116 = 3374^2 + 46^2 .

It is an ABA number since it can be written as A⋅BA, here for A=2, B=2386.

It is a Duffinian number.

It is a nialpdrome in base 15.

It is not an unprimeable number, because it can be changed into a prime (11385991) by changing a digit.

It is a polite number, since it can be written in 2 ways as a sum of consecutive naturals, for example, 8948 + ... + 10140.

Almost surely, 211385992 is an apocalyptic number.

It is an amenable number.

11385992 is a deficient number, since it is larger than the sum of its proper divisors (9980653).

11385992 is an frugal number, since it uses more digits than its factorization.

11385992 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2392 (or 1195 counting only the distinct ones).

The product of its digits is 19440, while the sum is 38.

The square root of 11385992 is about 3374.3135598222. The cubic root of 11385992 is about 224.9694905134.

The spelling of 11385992 in words is "eleven million, three hundred eighty-five thousand, nine hundred ninety-two".

Divisors: 1 2 4 8 1193 2386 4772 9544 1423249 2846498 5692996 11385992