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12503304023 = 71786186289
BaseRepresentation
bin10111010010100000…
…10100011101010111
31012021101011122200012
423221100110131113
5201101321212043
65424405110435
7621562221260
oct135120243527
935241148605
1012503304023
115336875411
12250b3b841b
131243505762
148687d3967
154d2a3ca18
hex2e9414757

12503304023 has 4 divisors (see below), whose sum is σ = 14289490320. Its totient is φ = 10717117728.

The previous prime is 12503303941. The next prime is 12503304031. The reversal of 12503304023 is 32040330521.

12503304023 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.

It is a cyclic number.

It is not a de Polignac number, because 12503304023 - 218 = 12503041879 is a prime.

It is a super-2 number, since 2×125033040232 (a number of 21 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 12503304023.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12503304043) 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, 893093138 + ... + 893093151.

It is an arithmetic number, because the mean of its divisors is an integer number (3572372580).

Almost surely, 212503304023 is an apocalyptic number.

12503304023 is a deficient number, since it is larger than the sum of its proper divisors (1786186297).

12503304023 is an equidigital number, since it uses as much as digits as its factorization.

12503304023 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1786186296.

The product of its (nonzero) digits is 2160, while the sum is 23.

Adding to 12503304023 its reverse (32040330521), we get a palindrome (44543634544).

The spelling of 12503304023 in words is "twelve billion, five hundred three million, three hundred four thousand, twenty-three".

Divisors: 1 7 1786186289 12503304023