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1000002 = 23166667
BaseRepresentation
bin11110100001001000010
31212210202010
43310021002
5224000002
633233350
711333313
oct3641102
91783663
101000002
11623353
12402856
13290223
141c060a
1514b46c
hexf4242

1000002 has 8 divisors (see below), whose sum is σ = 2000016. Its totient is φ = 333332.

The previous prime is 999983. The next prime is 1000003. The reversal of 1000002 is 2000001.

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

1000002 is an admirable number.

It is a Harshad number since it is a multiple of its sum of digits (3).

It is a super Niven number, because it is divisible the sum of any subset of its (nonzero) digits.

It is an Ulam number.

It is not an unprimeable number, because it can be changed into a prime (1000003) 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, 83328 + ... + 83339.

It is an arithmetic number, because the mean of its divisors is an integer number (250002).

21000002 is an apocalyptic number.

1000002 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

1000002 is a wasteful number, since it uses less digits than its factorization.

1000002 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 166672.

The product of its (nonzero) digits is 2, while the sum is 3.

The square root of 1000002 is about 1000.0009999995. Note that the first 3 decimals coincide. The cubic root of 1000002 is about 100.0000666666. Note that the first 4 decimals are identical.

The spelling of 1000002 in words is "one million, two", and is thus an aban number and an uban number.

Divisors: 1 2 3 6 166667 333334 500001 1000002