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1000399 = 1783709
BaseRepresentation
bin11110100001111001111
31212211021211
43310033033
5224003044
633235251
711334421
oct3641717
91784254
101000399
11623684
12402b27
1329046a
141c0811
1514b634
hexf43cf

1000399 has 8 divisors (see below), whose sum is σ = 1073520. Its totient is φ = 928896.

The previous prime is 1000397. The next prime is 1000403. The reversal of 1000399 is 9930001.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 1000399 - 21 = 1000397 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1000393) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1057 + ... + 1765.

It is an arithmetic number, because the mean of its divisors is an integer number (134190).

21000399 is an apocalyptic number.

1000399 is a deficient number, since it is larger than the sum of its proper divisors (73121).

1000399 is an equidigital number, since it uses as much as digits as its factorization.

1000399 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 809.

The product of its (nonzero) digits is 243, while the sum is 22.

The square root of 1000399 is about 1000.1994801038. The cubic root of 1000399 is about 100.0132982315.

The spelling of 1000399 in words is "one million, three hundred ninety-nine", and thus it is an aban number.

Divisors: 1 17 83 709 1411 12053 58847 1000399