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38855039 = 83468133
BaseRepresentation
bin1001010000111…
…0000101111111
32201010001002112
42110032011333
534421330124
63504444235
7651155666
oct224160577
981101075
1038855039
111aa29403
121101967b
138085662
145235ddd
15362790e
hex250e17f

38855039 has 4 divisors (see below), whose sum is σ = 39323256. Its totient is φ = 38386824.

The previous prime is 38855029. The next prime is 38855071. The reversal of 38855039 is 93055883.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 93055883 = 97959339.

It is a cyclic number.

It is not a de Polignac number, because 38855039 - 212 = 38850943 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 38854987 and 38855005.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (38855009) 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, 233984 + ... + 234149.

It is an arithmetic number, because the mean of its divisors is an integer number (9830814).

Almost surely, 238855039 is an apocalyptic number.

38855039 is a deficient number, since it is larger than the sum of its proper divisors (468217).

38855039 is an equidigital number, since it uses as much as digits as its factorization.

38855039 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 468216.

The product of its (nonzero) digits is 129600, while the sum is 41.

The square root of 38855039 is about 6233.3810247730. The cubic root of 38855039 is about 338.7004573453.

The spelling of 38855039 in words is "thirty-eight million, eight hundred fifty-five thousand, thirty-nine".

Divisors: 1 83 468133 38855039