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2000120003 = 7285731429
BaseRepresentation
bin111011100110111…
…0110100011000011
312011101120121211122
41313031312203003
513044012320003
6530245302455
7100364511440
oct16715664303
95141517748
102000120003
11937019842
12479a04a2b
1325b4b9b7b
1414d8ca9c7
15ba8d8238
hex773768c3

2000120003 has 4 divisors (see below), whose sum is σ = 2285851440. Its totient is φ = 1714388568.

The previous prime is 2000119991. The next prime is 2000120009. The reversal of 2000120003 is 3000210002.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 2000120003 - 210 = 2000118979 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (2000120009) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 142865708 + ... + 142865721.

It is an arithmetic number, because the mean of its divisors is an integer number (571462860).

Almost surely, 22000120003 is an apocalyptic number.

2000120003 is a deficient number, since it is larger than the sum of its proper divisors (285731437).

2000120003 is an equidigital number, since it uses as much as digits as its factorization.

2000120003 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 285731436.

The product of its (nonzero) digits is 12, while the sum is 8.

The square root of 2000120003 is about 44722.7012041983. The cubic root of 2000120003 is about 1259.9462484419.

Adding to 2000120003 its reverse (3000210002), we get a palindrome (5000330005).

It can be divided in two parts, 20001 and 20003, that added together give a palindrome (40004).

The spelling of 2000120003 in words is "two billion, one hundred twenty thousand, three".

Divisors: 1 7 285731429 2000120003