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38481109 = 471037949
BaseRepresentation
bin1001001011001…
…0110011010101
32200102001011021
42102302303111
534322343414
63452441141
7645040552
oct222626325
980361137
1038481109
111a7a3477
1210a791b1
137c843b4
145179a29
1535a1c24
hex24b2cd5

38481109 has 8 divisors (see below), whose sum is σ = 39686400. Its totient is φ = 37292016.

The previous prime is 38481059. The next prime is 38481181. The reversal of 38481109 is 90118483.

It is a happy number.

38481109 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2k-38481109 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (38484109) by changing a digit.

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 7 ways as a sum of consecutive naturals, for example, 867 + ... + 8815.

It is an arithmetic number, because the mean of its divisors is an integer number (4960800).

Almost surely, 238481109 is an apocalyptic number.

It is an amenable number.

38481109 is a deficient number, since it is larger than the sum of its proper divisors (1205291).

38481109 is a wasteful number, since it uses less digits than its factorization.

38481109 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8099.

The product of its (nonzero) digits is 6912, while the sum is 34.

The square root of 38481109 is about 6203.3143560519. The cubic root of 38481109 is about 337.6104337283.

The spelling of 38481109 in words is "thirty-eight million, four hundred eighty-one thousand, one hundred nine".

Divisors: 1 47 103 4841 7949 373603 818747 38481109