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2000000000051 = 139119331205773
BaseRepresentation
bin11101000110101001010…
…010100010000000110011
321002012100102211212000222
4131012221102202000303
5230232000000000201
64130442021003255
7264331602335144
oct35065122420063
97065312755028
102000000000051
11701216950929
12283743b5352b
131167a35643c1
146cb2c88dacb
1537057ecc91b
hex1d1a94a2033

2000000000051 has 8 divisors (see below), whose sum is σ = 2014558968240. Its totient is φ = 1985443467552.

The previous prime is 2000000000003. The next prime is 2000000000123. The reversal of 2000000000051 is 1500000000002.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2k-2000000000051 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 1999999999948 and 2000000000038.

It is not an unprimeable number, because it can be changed into a prime (2000000005051) 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 7 ways as a sum of consecutive naturals, for example, 1055801 + ... + 2261573.

It is an arithmetic number, because the mean of its divisors is an integer number (251819871030).

Almost surely, 22000000000051 is an apocalyptic number.

2000000000051 is a deficient number, since it is larger than the sum of its proper divisors (14558968189).

2000000000051 is a wasteful number, since it uses less digits than its factorization.

2000000000051 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1217845.

The product of its (nonzero) digits is 10, while the sum is 8.

Adding to 2000000000051 its reverse (1500000000002), we get a palindrome (3500000000053).

The spelling of 2000000000051 in words is "two trillion, fifty-one", and thus it is an aban number and an uban number.

Divisors: 1 139 11933 1205773 1658687 167602447 14388489209 2000000000051