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38454425 = 521790481
BaseRepresentation
bin1001001010110…
…0010010011001
32200100200112222
42102230102121
534321020200
63452113425
7644600012
oct222542231
980320488
1038454425
111a785419
1210a65875
137c751c9
145170009
153598d85
hex24ac499

38454425 has 12 divisors (see below), whose sum is σ = 50488956. Its totient is φ = 28953600.

The previous prime is 38454421. The next prime is 38454439. The reversal of 38454425 is 52445483.

It can be written as a sum of positive squares in 6 ways, for example, as 2226064 + 36228361 = 1492^2 + 6019^2 .

It is not a de Polignac number, because 38454425 - 22 = 38454421 is a prime.

It is a hoax number, since the sum of its digits (35) coincides with the sum of the digits of its distinct prime factors.

It is a Duffinian number.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (38454421) by changing a digit.

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 11 ways as a sum of consecutive naturals, for example, 44816 + ... + 45665.

It is an arithmetic number, because the mean of its divisors is an integer number (4207413).

Almost surely, 238454425 is an apocalyptic number.

It is an amenable number.

38454425 is a deficient number, since it is larger than the sum of its proper divisors (12034531).

38454425 is a wasteful number, since it uses less digits than its factorization.

38454425 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 90508 (or 90503 counting only the distinct ones).

The product of its digits is 76800, while the sum is 35.

The square root of 38454425 is about 6201.1631973364. The cubic root of 38454425 is about 337.5323791523.

The spelling of 38454425 in words is "thirty-eight million, four hundred fifty-four thousand, four hundred twenty-five".

Divisors: 1 5 17 25 85 425 90481 452405 1538177 2262025 7690885 38454425