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38904485 = 547165551
BaseRepresentation
bin1001010001101…
…0001010100101
32201012112220212
42110122022211
534424420420
63505505205
7651453104
oct224321245
981175825
1038904485
111aa62574
1211042205
1380a2009
14524a03b
1536373c5
hex251a2a5

38904485 has 8 divisors (see below), whose sum is σ = 47678976. Its totient is φ = 30461200.

The previous prime is 38904461. The next prime is 38904497. The reversal of 38904485 is 58440983.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a de Polignac number, because none of the positive numbers 2k-38904485 is a prime.

It is a Duffinian number.

It is a congruent number.

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 7 ways as a sum of consecutive naturals, for example, 82541 + ... + 83010.

It is an arithmetic number, because the mean of its divisors is an integer number (5959872).

Almost surely, 238904485 is an apocalyptic number.

It is an amenable number.

38904485 is a deficient number, since it is larger than the sum of its proper divisors (8774491).

38904485 is a wasteful number, since it uses less digits than its factorization.

38904485 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 165603.

The product of its (nonzero) digits is 138240, while the sum is 41.

The square root of 38904485 is about 6237.3459900826. The cubic root of 38904485 is about 338.8440704961.

The spelling of 38904485 in words is "thirty-eight million, nine hundred four thousand, four hundred eighty-five".

Divisors: 1 5 47 235 165551 827755 7780897 38904485