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2000000005 = 51980120201
BaseRepresentation
bin111011100110101…
…1001010000000101
312011101100112020021
41313031121100011
513044000000010
6530242535141
7100363501543
oct16715312005
95141315207
102000000005
11936a47673
124799674b1
1325b477373
1414d898d93
15ba8b28da
hex77359405

2000000005 has 8 divisors (see below), whose sum is σ = 2400240024. Its totient is φ = 1599840000.

The previous prime is 1999999973. The next prime is 2000000011. The reversal of 2000000005 is 5000000002.

It can be written as a sum of positive squares in 4 ways, for example, as 384120801 + 1615879204 = 19599^2 + 40198^2 .

It is a sliding number, since 2000000005 = 5 + 2000000000 and 1/5 + 1/2000000000 = 0.2000000005.

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

It is not a de Polignac number, because 2000000005 - 25 = 1999999973 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (5) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 88905 + ... + 109105.

It is an arithmetic number, because the mean of its divisors is an integer number (300030003).

Almost surely, 22000000005 is an apocalyptic number.

It is an amenable number.

2000000005 is a deficient number, since it is larger than the sum of its proper divisors (400240019).

2000000005 is a wasteful number, since it uses less digits than its factorization.

2000000005 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 40007.

The product of its (nonzero) digits is 10, while the sum is 7.

The square root of 2000000005 is about 44721.3596058975. The cubic root of 2000000005 is about 1259.9210509448.

Adding to 2000000005 its reverse (5000000002), we get a palindrome (7000000007).

It can be divided in two parts, 200000000 and 5, that multiplied together give a 9-th power (1000000000 = 109).

The spelling of 2000000005 in words is "two billion, five", and thus it is an aban number and an uban number.

Divisors: 1 5 19801 20201 99005 101005 400000001 2000000005