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2001002000002 = 212314397184843
BaseRepresentation
bin11101000111100101000…
…000110110111010000010
321002021221021021201120021
4131013211000312322002
5230241023003000002
64131125253204054
7264365460235615
oct35074500667202
97067837251507
102001002000002
11701690510265
1228398363062a
13116903021995
146cbc599c17c
15370b5e56737
hex1d1e5036e82

2001002000002 has 16 divisors (see below), whose sum is σ = 3004640698752. Its totient is φ = 999455481360.

The previous prime is 2001001999999. The next prime is 2001002000009. The reversal of 2001002000002 is 2000002001002.

It is a happy number.

It is not an unprimeable number, because it can be changed into a prime (2001002000009) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 10732993 + ... + 10917835.

It is an arithmetic number, because the mean of its divisors is an integer number (187790043672).

Almost surely, 22001002000002 is an apocalyptic number.

2001002000002 is a deficient number, since it is larger than the sum of its proper divisors (1003638698750).

2001002000002 is a wasteful number, since it uses less digits than its factorization.

2001002000002 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 190473.

The product of its (nonzero) digits is 8, while the sum is 7.

Adding to 2001002000002 its reverse (2000002001002), we get a palindrome (4001004001004).

The spelling of 2001002000002 in words is "two trillion, one billion, two million, two", and thus it is an aban number and an uban number.

Divisors: 1 2 1231 2462 4397 8794 184843 369686 5412707 10825414 227541733 455083466 812754671 1625509342 1000501000001 2001002000002