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1238393 = 1395261
BaseRepresentation
bin100101110010101111001
32022220202102
410232111321
5304112033
642313145
713345322
oct4562571
92286672
101238393
11776472
124b87b5
133448a0
14243449
15196de8
hex12e579

1238393 has 4 divisors (see below), whose sum is σ = 1333668. Its totient is φ = 1143120.

The previous prime is 1238383. The next prime is 1238407. The reversal of 1238393 is 3938321.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 150544 + 1087849 = 388^2 + 1043^2 .

It is a cyclic number.

It is not a de Polignac number, because 1238393 - 28 = 1238137 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1238333) 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, 47618 + ... + 47643.

It is an arithmetic number, because the mean of its divisors is an integer number (333417).

21238393 is an apocalyptic number.

1238393 is a gapful number since it is divisible by the number (13) formed by its first and last digit.

It is an amenable number.

1238393 is a deficient number, since it is larger than the sum of its proper divisors (95275).

1238393 is an equidigital number, since it uses as much as digits as its factorization.

1238393 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 95274.

The product of its digits is 3888, while the sum is 29.

The square root of 1238393 is about 1112.8310743325. The cubic root of 1238393 is about 107.3872768295.

The spelling of 1238393 in words is "one million, two hundred thirty-eight thousand, three hundred ninety-three".

Divisors: 1 13 95261 1238393