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BaseRepresentation
bin100110001110…
…0001110000000
31101201001200201
41030130032000
520112213103
61553254544
7332216236
oct114341600
941631621
1020038528
1110347274
126864454
1341c7b23
142938956
151b5c51d
hex131c380

20038528 has 32 divisors (see below), whose sum is σ = 40392000. Its totient is φ = 9901056.

The previous prime is 20038481. The next prime is 20038531. The reversal of 20038528 is 82583002.

It is a tau number, because it is divible by the number of its divisors (32).

It is a junction number, because it is equal to n+sod(n) for n = 20038496 and 20038505.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 10513 + ... + 12271.

It is an arithmetic number, because the mean of its divisors is an integer number (1262250).

Almost surely, 220038528 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 20038528, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (20196000).

20038528 is an abundant number, since it is smaller than the sum of its proper divisors (20353472).

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

20038528 is an equidigital number, since it uses as much as digits as its factorization.

20038528 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1862 (or 1850 counting only the distinct ones).

The product of its (nonzero) digits is 3840, while the sum is 28.

The square root of 20038528 is about 4476.4414438257. The cubic root of 20038528 is about 271.6159516573.

The spelling of 20038528 in words is "twenty million, thirty-eight thousand, five hundred twenty-eight".