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38395331 = 132953487
BaseRepresentation
bin1001001001110…
…1110111000011
32200020200111022
42102131313003
534312122311
63450540055
7644232512
oct222356703
980220438
1038395331
111a744a87
1210a3762b
137c54340
145156679
1535865db
hex249ddc3

38395331 has 4 divisors (see below), whose sum is σ = 41348832. Its totient is φ = 35441832.

The previous prime is 38395327. The next prime is 38395361. The reversal of 38395331 is 13359383.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 13359383 = 23955897.

It is a cyclic number.

It is not a de Polignac number, because 38395331 - 22 = 38395327 is a prime.

It is a super-2 number, since 2×383953312 = 2948402885199122, which contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 38395291 and 38395300.

It is not an unprimeable number, because it can be changed into a prime (38395361) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1476731 + ... + 1476756.

It is an arithmetic number, because the mean of its divisors is an integer number (10337208).

Almost surely, 238395331 is an apocalyptic number.

38395331 is a deficient number, since it is larger than the sum of its proper divisors (2953501).

38395331 is a wasteful number, since it uses less digits than its factorization.

38395331 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2953500.

The product of its digits is 29160, while the sum is 35.

The square root of 38395331 is about 6196.3966141621. The cubic root of 38395331 is about 337.3593920001.

The spelling of 38395331 in words is "thirty-eight million, three hundred ninety-five thousand, three hundred thirty-one".

Divisors: 1 13 2953487 38395331