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2000012000018 = 210000032
BaseRepresentation
bin11101000110101010000…
…000010011101100010010
321002012101021102111220012
4131012222000103230102
5230232011033000033
64130443130114522
7264332106334364
oct35065200235422
97065337374805
102000012000018
117012226a765a
12283747b7ba42
131167a5ba6386
146cb302d4d34
153705909d248
hex1d1aa013b12

2000012000018 has 6 divisors (see below), whose sum is σ = 3000021000039. Its totient is φ = 1000005000006.

The previous prime is 2000011999981. The next prime is 2000012000047. The reversal of 2000012000018 is 8100002100002.

It can be written as a sum of positive squares in only one way, i.e., 1000006000009 + 1000006000009 = 1000003^2 + 1000003^2 .

It is an ABA number since it can be written as A⋅BA, here for A=2, B=1000003.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 2000011999966 and 2000012000011.

It is an unprimeable number.

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 2 ways as a sum of consecutive naturals, for example, 1500005 + ... + 2500007.

Almost surely, 22000012000018 is an apocalyptic number.

2000012000018 is a deficient number, since it is larger than the sum of its proper divisors (1000009000021).

2000012000018 is an frugal number, since it uses more digits than its factorization.

2000012000018 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2000008 (or 1000005 counting only the distinct ones).

The product of its (nonzero) digits is 32, while the sum is 14.

Multiplying 2000012000018 by its product of nonzero digits (32), we get a square (64000384000576 = 80000242).

The spelling of 2000012000018 in words is "two trillion, twelve million, eighteen", and thus it is an aban number and an uban number.

Divisors: 1 2 1000003 2000006 1000006000009 2000012000018