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1020002 = 22232287
BaseRepresentation
bin11111001000001100010
31220211011212
43321001202
5230120002
633510122
711445524
oct3710142
91824155
101020002
11637385
12412342
13299369
141c7a14
15152352
hexf9062

1020002 has 8 divisors (see below), whose sum is σ = 1537536. Its totient is φ = 507492.

The previous prime is 1020001. The next prime is 1020007. The reversal of 1020002 is 2000201.

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

It is an Ulam number.

It is not an unprimeable number, because it can be changed into a prime (1020001) 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, 698 + ... + 1589.

It is an arithmetic number, because the mean of its divisors is an integer number (192192).

21020002 is an apocalyptic number.

1020002 is a deficient number, since it is larger than the sum of its proper divisors (517534).

1020002 is a wasteful number, since it uses less digits than its factorization.

1020002 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2512.

The product of its (nonzero) digits is 4, while the sum is 5.

The square root of 1020002 is about 1009.9514839833. The cubic root of 1020002 is about 100.6623367483.

Adding to 1020002 its reverse (2000201), we get a palindrome (3020203).

Multiplying 1020002 by its reverse (2000201), we get a palindrome (2040209020402).

The spelling of 1020002 in words is "one million, twenty thousand, two".

Divisors: 1 2 223 446 2287 4574 510001 1020002