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BaseRepresentation
bin101100111110100
31011120220
411213310
51214103
6254340
7124065
oct54764
934526
1023028
1116335
12113b0
13a635
14856c
156c53
hex59f4

23028 has 24 divisors (see below), whose sum is σ = 57120. Its totient is φ = 7200.

The previous prime is 23027. The next prime is 23029. The reversal of 23028 is 82032.

It is an interprime number because it is at equal distance from previous prime (23027) and next prime (23029).

It is an Ulam number.

It is a junction number, because it is equal to n+sod(n) for n = 22998 and 23016.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (23021) 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, 178 + ... + 278.

It is an arithmetic number, because the mean of its divisors is an integer number (2380).

223028 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 23028, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (28560).

23028 is an abundant number, since it is smaller than the sum of its proper divisors (34092).

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

23028 is a wasteful number, since it uses less digits than its factorization.

23028 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 127 (or 125 counting only the distinct ones).

The product of its (nonzero) digits is 96, while the sum is 15.

The square root of 23028 is about 151.7497940691. The cubic root of 23028 is about 28.4502054484.

The spelling of 23028 in words is "twenty-three thousand, twenty-eight".