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38285500 = 2253116961
BaseRepresentation
bin1001001000001…
…1000010111100
32200001002211111
42102003002330
534300114000
63444331404
7643264351
oct222030274
980032744
1038285500
111a67a510
12109a3b64
137c16356
145128628
153563cba
hex24830bc

38285500 has 48 divisors (see below), whose sum is σ = 91230048. Its totient is φ = 13920000.

The previous prime is 38285497. The next prime is 38285509. The reversal of 38285500 is 558283.

It is a hoax number, since the sum of its digits (31) coincides with the sum of the digits of its distinct prime factors.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (38285509) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 2020 + ... + 8980.

It is an arithmetic number, because the mean of its divisors is an integer number (1900626).

Almost surely, 238285500 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 38285500, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (45615024).

38285500 is an abundant number, since it is smaller than the sum of its proper divisors (52944548).

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

38285500 is a wasteful number, since it uses less digits than its factorization.

38285500 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6991 (or 6979 counting only the distinct ones).

The product of its (nonzero) digits is 9600, while the sum is 31.

The square root of 38285500 is about 6187.5277777154. The cubic root of 38285500 is about 337.0374092258.

The spelling of 38285500 in words is "thirty-eight million, two hundred eighty-five thousand, five hundred".

Divisors: 1 2 4 5 10 11 20 22 25 44 50 55 100 110 125 220 250 275 500 550 1100 1375 2750 5500 6961 13922 27844 34805 69610 76571 139220 153142 174025 306284 348050 382855 696100 765710 870125 1531420 1740250 1914275 3480500 3828550 7657100 9571375 19142750 38285500