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2000001000000 = 26356666667
BaseRepresentation
bin11101000110101001010…
…110010110001001000000
321002012100111201122201010
4131012221112112021000
5230232000224000000
64130442054240520
7264331614001353
oct35065126261100
97065314648633
102000001000000
11701217474133
12283744356140
131167a38245a3
146cb2ca7029a
1537058128d50
hex1d1a9596240

2000001000000 has 196 divisors, whose sum is σ = 6614511895664. Its totient is φ = 533332800000.

The previous prime is 2000000999993. The next prime is 2000001000001. The reversal of 2000001000000 is 1000002.

2000001000000 is a nontrivial binomial coefficient, being equal to C(2000001, 2).

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 not an unprimeable number, because it can be changed into a prime (2000001000001) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 27 ways as a sum of consecutive naturals, for example, 2666667 + ... + 3333333.

Almost surely, 22000001000000 is an apocalyptic number.

2000001000000 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

2000001000000 is the 2000000-th triangular number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 2000001000000, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (3307255947832).

2000001000000 is an abundant number, since it is smaller than the sum of its proper divisors (4614510895664).

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

2000001000000 is an frugal number, since it uses more digits than its factorization.

2000001000000 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 666712 (or 666677 counting only the distinct ones).

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

Adding to 2000001000000 its reverse (1000002), we get a palindrome (2000002000002).

The spelling of 2000001000000 in words is "two trillion, one million", and thus it is an aban number and an uban number.