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19452 = 2231621
BaseRepresentation
bin100101111111100
3222200110
410233330
51110302
6230020
7110466
oct45774
928613
1019452
1113684
12b310
138b14
147136
155b6c
hex4bfc

19452 has 12 divisors (see below), whose sum is σ = 45416. Its totient is φ = 6480.

The previous prime is 19447. The next prime is 19457. The reversal of 19452 is 25491.

It is an interprime number because it is at equal distance from previous prime (19447) and next prime (19457).

It is a tau number, because it is divible by the number of its divisors (12).

It is a nialpdrome in base 12.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (19457) by changing a digit.

19452 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, 799 + ... + 822.

219452 is an apocalyptic number.

19452 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

19452 is an abundant number, since it is smaller than the sum of its proper divisors (25964).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

It is a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (22708).

19452 is a wasteful number, since it uses less digits than its factorization.

19452 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1628 (or 1626 counting only the distinct ones).

The product of its digits is 360, while the sum is 21.

The square root of 19452 is about 139.4704269729. The cubic root of 19452 is about 26.8939599398.

It can be divided in two parts, 1 and 9452, that added together give a triangular number (9453 = T137).

The spelling of 19452 in words is "nineteen thousand, four hundred fifty-two".

Divisors: 1 2 3 4 6 12 1621 3242 4863 6484 9726 19452