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11192389 = 133723269
BaseRepresentation
bin101010101100…
…100001000101
3210001122001221
4222230201011
510331124024
61035520341
7164063605
oct52544105
923048057
1011192389
11635500a
1238b90b1
13241b520
1416b4c05
15eb13e4
hexaac845

11192389 has 8 divisors (see below), whose sum is σ = 12379640. Its totient is φ = 10051776.

The previous prime is 11192371. The next prime is 11192393. The reversal of 11192389 is 98329111.

11192389 is digitally balanced in base 3, 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 4 ways, for example, as 1520289 + 9672100 = 1233^2 + 3110^2 .

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

It is a cyclic number.

It is not a de Polignac number, because 11192389 - 27 = 11192261 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11192309) 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, 11154 + ... + 12115.

It is an arithmetic number, because the mean of its divisors is an integer number (1547455).

Almost surely, 211192389 is an apocalyptic number.

It is an amenable number.

11192389 is a deficient number, since it is larger than the sum of its proper divisors (1187251).

11192389 is a wasteful number, since it uses less digits than its factorization.

11192389 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 23319.

The product of its digits is 3888, while the sum is 34.

The square root of 11192389 is about 3345.5028022705. The cubic root of 11192389 is about 223.6870963275.

The spelling of 11192389 in words is "eleven million, one hundred ninety-two thousand, three hundred eighty-nine".

Divisors: 1 13 37 481 23269 302497 860953 11192389