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38885393 = 67580379
BaseRepresentation
bin1001010001010…
…1100000010001
32201011120201202
42110111200101
534423313033
63505240545
7651343331
oct224254021
981146652
1038885393
111aa4a198
1211033155
138096411
1452430c1
1536318e8
hex2515811

38885393 has 4 divisors (see below), whose sum is σ = 39465840. Its totient is φ = 38304948.

The previous prime is 38885321. The next prime is 38885453. The reversal of 38885393 is 39358883.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also an emirpimes, since its reverse is a distinct semiprime: 39358883 = 87744879.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2k-38885393 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (38885293) 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, 290123 + ... + 290256.

It is an arithmetic number, because the mean of its divisors is an integer number (9866460).

Almost surely, 238885393 is an apocalyptic number.

It is an amenable number.

38885393 is a deficient number, since it is larger than the sum of its proper divisors (580447).

38885393 is an equidigital number, since it uses as much as digits as its factorization.

38885393 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 580446.

The product of its digits is 622080, while the sum is 47.

The square root of 38885393 is about 6235.8153436419. The cubic root of 38885393 is about 338.7886332758.

The spelling of 38885393 in words is "thirty-eight million, eight hundred eighty-five thousand, three hundred ninety-three".

Divisors: 1 67 580379 38885393