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19412 = 2223211
BaseRepresentation
bin100101111010100
3222121222
410233110
51110122
6225512
7110411
oct45724
928558
1019412
1113648
12b298
138ab3
147108
155b42
hex4bd4

19412 has 12 divisors (see below), whose sum is σ = 35616. Its totient is φ = 9240.

The previous prime is 19403. The next prime is 19417. The reversal of 19412 is 21491.

It is a happy number.

19412 is nontrivially palindromic in base 3.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (19417) by changing a digit.

19412 is an untouchable number, because it is not equal to the sum of proper divisors of any number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 14 + ... + 197.

It is an arithmetic number, because the mean of its divisors is an integer number (2968).

219412 is an apocalyptic number.

It is an amenable number.

19412 is a deficient number, since it is larger than the sum of its proper divisors (16204).

19412 is a wasteful number, since it uses less digits than its factorization.

19412 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 238 (or 236 counting only the distinct ones).

The product of its digits is 72, while the sum is 17.

The square root of 19412 is about 139.3269536020. The cubic root of 19412 is about 26.8755128801.

The spelling of 19412 in words is "nineteen thousand, four hundred twelve".

Divisors: 1 2 4 23 46 92 211 422 844 4853 9706 19412