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38355385 = 517474391
BaseRepresentation
bin1001001001010…
…0000110111001
32200011122200211
42102110012321
534304333020
63450031121
7644005165
oct222240671
980148624
1038355385
111a717a72
1210a184a1
137c3c0c3
145145ca5
15357985a
hex24941b9

38355385 has 8 divisors (see below), whose sum is σ = 46063296. Its totient is φ = 30659760.

The previous prime is 38355341. The next prime is 38355389. The reversal of 38355385 is 58355383.

It is a happy number.

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

It is not a de Polignac number, because 38355385 - 215 = 38322617 is a prime.

It is a super-2 number, since 2×383553852 = 2942271116996450, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (38355389) 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 7 ways as a sum of consecutive naturals, for example, 6540 + ... + 10930.

It is an arithmetic number, because the mean of its divisors is an integer number (5757912).

Almost surely, 238355385 is an apocalyptic number.

It is an amenable number.

38355385 is a deficient number, since it is larger than the sum of its proper divisors (7707911).

38355385 is a wasteful number, since it uses less digits than its factorization.

38355385 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6143.

The product of its digits is 216000, while the sum is 40.

The square root of 38355385 is about 6193.1724503682. The cubic root of 38355385 is about 337.2423566376.

The spelling of 38355385 in words is "thirty-eight million, three hundred fifty-five thousand, three hundred eighty-five".

Divisors: 1 5 1747 4391 8735 21955 7671077 38355385