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1048381 = 3113371
BaseRepresentation
bin11111111111100111101
31222021002221
43333330331
5232022011
634245341
711624335
oct3777475
91867087
101048381
11656734
12426851
132a9259
141d40c5
1515a971
hexfff3d

1048381 has 4 divisors (see below), whose sum is σ = 1052064. Its totient is φ = 1044700.

The previous prime is 1048367. The next prime is 1048387. The reversal of 1048381 is 1838401.

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.

It is a cyclic number.

It is not a de Polignac number, because 1048381 - 213 = 1040189 is a prime.

It is a super-2 number, since 2×10483812 = 2198205442322, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1048387) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1375 + ... + 1996.

It is an arithmetic number, because the mean of its divisors is an integer number (263016).

21048381 is an apocalyptic number.

It is an amenable number.

1048381 is a deficient number, since it is larger than the sum of its proper divisors (3683).

1048381 is an equidigital number, since it uses as much as digits as its factorization.

1048381 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3682.

The product of its (nonzero) digits is 768, while the sum is 25.

The square root of 1048381 is about 1023.9047807291. The cubic root of 1048381 is about 101.5873692629.

The spelling of 1048381 in words is "one million, forty-eight thousand, three hundred eighty-one".

Divisors: 1 311 3371 1048381