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1050001 = 3133871
BaseRepresentation
bin100000000010110010001
31222100022221
410000112101
5232100001
634301041
711632141
oct4002621
91870287
101050001
11657977
12427781
132a9c04
141d4921
1515b1a1
hex100591

1050001 has 4 divisors (see below), whose sum is σ = 1083904. Its totient is φ = 1016100.

The previous prime is 1049999. The next prime is 1050011. The reversal of 1050001 is 1000501.

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 1050001 - 21 = 1049999 is a prime.

It is a super-2 number, since 2×10500012 = 2205004200002, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1050011) 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, 16905 + ... + 16966.

It is an arithmetic number, because the mean of its divisors is an integer number (270976).

21050001 is an apocalyptic number.

It is an amenable number.

1050001 is a deficient number, since it is larger than the sum of its proper divisors (33903).

1050001 is an equidigital number, since it uses as much as digits as its factorization.

1050001 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 33902.

The product of its (nonzero) digits is 5, while the sum is 7.

The square root of 1050001 is about 1024.6955645459. The cubic root of 1050001 is about 101.6396679480.

Adding to 1050001 its reverse (1000501), we get a palindrome (2050502).

The spelling of 1050001 in words is "one million, fifty thousand, one".

Divisors: 1 31 33871 1050001