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38383025 = 521790313
BaseRepresentation
bin1001001001101…
…0110110110001
32200020001121112
42102122312301
534311224100
63450403105
7644151602
oct222326661
980201545
1038383025
111a73680a
1210a30495
137c4b865
145151da9
153582b35

38383025 has 12 divisors (see below), whose sum is σ = 50395212. Its totient is φ = 28899840.

The previous prime is 38383003. The next prime is 38383039. The reversal of 38383025 is 52038383.

38383025 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 6 ways, for example, as 5400976 + 32982049 = 2324^2 + 5743^2 .

It is not a de Polignac number, because 38383025 - 212 = 38378929 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 38382982 and 38383000.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 44732 + ... + 45581.

It is an arithmetic number, because the mean of its divisors is an integer number (4199601).

It is the magic constant of a 425 × 425 magic square.

Almost surely, 238383025 is an apocalyptic number.

It is an amenable number.

38383025 is a deficient number, since it is larger than the sum of its proper divisors (12012187).

38383025 is a wasteful number, since it uses less digits than its factorization.

38383025 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 90340 (or 90335 counting only the distinct ones).

The product of its (nonzero) digits is 17280, while the sum is 32.

The square root of 38383025 is about 6195.4035381079. The cubic root of 38383025 is about 337.3233460523.

The spelling of 38383025 in words is "thirty-eight million, three hundred eighty-three thousand, twenty-five".