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12745769503 = 41039310577
BaseRepresentation
bin10111101111011010…
…10000001000011111
31012220021102011210011
423313231100020133
5202100404111003
65504430024051
7630565152565
oct136755201037
935807364704
1012745769503
115450722305
122578648027
13128180a85c
1488caaba35
154e8e8446d
hex2f7b5021f

12745769503 has 4 divisors (see below), whose sum is σ = 12746121120. Its totient is φ = 12745417888.

The previous prime is 12745769489. The next prime is 12745769513. The reversal of 12745769503 is 30596754721.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 30596754721 = 132353596517.

It is a cyclic number.

It is not a de Polignac number, because 12745769503 - 25 = 12745769471 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 (12745769513) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 114250 + ... + 196327.

It is an arithmetic number, because the mean of its divisors is an integer number (3186530280).

Almost surely, 212745769503 is an apocalyptic number.

12745769503 is a deficient number, since it is larger than the sum of its proper divisors (351617).

12745769503 is an equidigital number, since it uses as much as digits as its factorization.

12745769503 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 351616.

The product of its (nonzero) digits is 1587600, while the sum is 49.

The spelling of 12745769503 in words is "twelve billion, seven hundred forty-five million, seven hundred sixty-nine thousand, five hundred three".

Divisors: 1 41039 310577 12745769503