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1000349 = 7142907
BaseRepresentation
bin11110100001110011101
31212211012222
43310032131
5224002344
633235125
711334320
oct3641635
91784188
101000349
11623639
12402aa5
1329042c
141c07b7
1514b5ee
hexf439d

1000349 has 4 divisors (see below), whose sum is σ = 1143264. Its totient is φ = 857436.

The previous prime is 1000333. The next prime is 1000357. The reversal of 1000349 is 9430001.

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 1000349 - 24 = 1000333 is a prime.

It is an Ulam number.

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 (1000249) 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, 71447 + ... + 71460.

It is an arithmetic number, because the mean of its divisors is an integer number (285816).

21000349 is an apocalyptic number.

It is an amenable number.

1000349 is a deficient number, since it is larger than the sum of its proper divisors (142915).

1000349 is an equidigital number, since it uses as much as digits as its factorization.

1000349 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 142914.

The product of its (nonzero) digits is 108, while the sum is 17.

The square root of 1000349 is about 1000.1744847775. The cubic root of 1000349 is about 100.0116319803.

The spelling of 1000349 in words is "one million, three hundred forty-nine", and thus it is an aban number.

Divisors: 1 7 142907 1000349