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51832 = 23111931
BaseRepresentation
bin1100101001111000
32122002201
430221320
53124312
61035544
7304054
oct145170
978081
1051832
1135a40
1225bb4
131a791
1414c64
1510557
hexca78

51832 has 32 divisors (see below), whose sum is σ = 115200. Its totient is φ = 21600.

The previous prime is 51829. The next prime is 51839. The reversal of 51832 is 23815.

It is a happy number.

51832 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a Harshad number since it is a multiple of its sum of digits (19).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (51839) 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, 1657 + ... + 1687.

It is an arithmetic number, because the mean of its divisors is an integer number (3600).

251832 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 51832, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (57600).

51832 is an abundant number, since it is smaller than the sum of its proper divisors (63368).

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

51832 is a wasteful number, since it uses less digits than its factorization.

51832 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 67 (or 63 counting only the distinct ones).

The product of its digits is 240, while the sum is 19.

The square root of 51832 is about 227.6664226451. Note that the first 3 decimals coincide. The cubic root of 51832 is about 37.2848719280.

The spelling of 51832 in words is "fifty-one thousand, eight hundred thirty-two".