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38028450 = 2352594297
BaseRepresentation
bin1001000100010…
…0010010100010
32122120001020010
42101010102202
534213402300
63435025350
7641144055
oct221042242
978501203
1038028450
111a514379
121089b256
137b56355
14509ca9c
153512a50
hex24444a2

38028450 has 48 divisors (see below), whose sum is σ = 95931360. Its totient is φ = 9966720.

The previous prime is 38028421. The next prime is 38028451. The reversal of 38028450 is 5482083.

It is a Harshad number since it is a multiple of its sum of digits (30).

It is not an unprimeable number, because it can be changed into a prime (38028451) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 6702 + ... + 10998.

It is an arithmetic number, because the mean of its divisors is an integer number (1998570).

Almost surely, 238028450 is an apocalyptic number.

38028450 is a gapful number since it is divisible by the number (30) formed by its first and last digit.

It is a practical number, because each smaller number is the sum of distinct divisors of 38028450, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (47965680).

38028450 is an abundant number, since it is smaller than the sum of its proper divisors (57902910).

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

38028450 is a wasteful number, since it uses less digits than its factorization.

38028450 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4371 (or 4366 counting only the distinct ones).

The product of its (nonzero) digits is 7680, while the sum is 30.

The square root of 38028450 is about 6166.7211709303. The cubic root of 38028450 is about 336.2814216800.

The spelling of 38028450 in words is "thirty-eight million, twenty-eight thousand, four hundred fifty".

Divisors: 1 2 3 5 6 10 15 25 30 50 59 75 118 150 177 295 354 590 885 1475 1770 2950 4297 4425 8594 8850 12891 21485 25782 42970 64455 107425 128910 214850 253523 322275 507046 644550 760569 1267615 1521138 2535230 3802845 6338075 7605690 12676150 19014225 38028450