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12000010003 = 78809152267
BaseRepresentation
bin10110010110100000…
…11001111100010011
31010222022010200001221
423023100121330103
5144034000310003
65302425505511
7603241254622
oct131320317423
933868120057
1012000010003
1150a8769143
1223aa942297
131193169247
1481ba216b9
154a37737bd
hex2cb419f13

12000010003 has 4 divisors (see below), whose sum is σ = 12000241080. Its totient is φ = 11999778928.

The previous prime is 12000009991. The next prime is 12000010013. The reversal of 12000010003 is 30001000021.

12000010003 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 30001000021 = 49736032777.

It is a cyclic number.

It is not a de Polignac number, because 12000010003 - 29 = 12000009491 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (12000010013) 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 3 ways as a sum of consecutive naturals, for example, 2676 + ... + 154942.

It is an arithmetic number, because the mean of its divisors is an integer number (3000060270).

Almost surely, 212000010003 is an apocalyptic number.

12000010003 is a deficient number, since it is larger than the sum of its proper divisors (231077).

12000010003 is an equidigital number, since it uses as much as digits as its factorization.

12000010003 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 231076.

The product of its (nonzero) digits is 6, while the sum is 7.

Adding to 12000010003 its reverse (30001000021), we get a palindrome (42001010024).

The spelling of 12000010003 in words is "twelve billion, ten thousand, three".

Divisors: 1 78809 152267 12000010003