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38255120 = 245478189
BaseRepresentation
bin1001000111101…
…1101000010000
32122222120011022
42101323220100
534243130440
63443535012
7643106651
oct221735020
978876138
1038255120
111a659702
121098a468
137c05587
14511b528
153559cb5
hex247ba10

38255120 has 20 divisors (see below), whose sum is σ = 88943340. Its totient is φ = 15302016.

The previous prime is 38255111. The next prime is 38255131. The reversal of 38255120 is 2155283.

It can be written as a sum of positive squares in 2 ways, for example, as 4892944 + 33362176 = 2212^2 + 5776^2 .

It is a tau number, because it is divible by the number of its divisors (20).

It is a self number, because there is not a number n which added to its sum of digits gives 38255120.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 239015 + ... + 239174.

It is an arithmetic number, because the mean of its divisors is an integer number (4447167).

Almost surely, 238255120 is an apocalyptic number.

It is an amenable number.

38255120 is an abundant number, since it is smaller than the sum of its proper divisors (50688220).

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

38255120 is a wasteful number, since it uses less digits than its factorization.

38255120 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 478202 (or 478196 counting only the distinct ones).

The product of its (nonzero) digits is 2400, while the sum is 26.

The square root of 38255120 is about 6185.0723520425. The cubic root of 38255120 is about 336.9482379034.

The spelling of 38255120 in words is "thirty-eight million, two hundred fifty-five thousand, one hundred twenty".

Divisors: 1 2 4 5 8 10 16 20 40 80 478189 956378 1912756 2390945 3825512 4781890 7651024 9563780 19127560 38255120