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38481317 = 72785333
BaseRepresentation
bin1001001011001…
…0110110100101
32200102001102222
42102302312211
534322400232
63452442125
7645041300
oct222626645
980361388
1038481317
111a7a3646
1210a79345
137c84514
145179b37
1535a1d12
hex24b2da5

38481317 has 6 divisors (see below), whose sum is σ = 44764038. Its totient is φ = 32983944.

The previous prime is 38481307. The next prime is 38481367. The reversal of 38481317 is 71318483.

38481317 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 only one way, i.e., 31516996 + 6964321 = 5614^2 + 2639^2 .

It is not a de Polignac number, because 38481317 - 220 = 37432741 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 (38481307) 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 5 ways as a sum of consecutive naturals, for example, 392618 + ... + 392715.

It is an arithmetic number, because the mean of its divisors is an integer number (7460673).

Almost surely, 238481317 is an apocalyptic number.

It is an amenable number.

38481317 is a deficient number, since it is larger than the sum of its proper divisors (6282721).

38481317 is an equidigital number, since it uses as much as digits as its factorization.

38481317 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 785347 (or 785340 counting only the distinct ones).

The product of its digits is 16128, while the sum is 35.

The square root of 38481317 is about 6203.3311212606. The cubic root of 38481317 is about 337.6110420168.

The spelling of 38481317 in words is "thirty-eight million, four hundred eighty-one thousand, three hundred seventeen".

Divisors: 1 7 49 785333 5497331 38481317