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12514523349 = 34171507783
BaseRepresentation
bin10111010011110110…
…00111100011010101
31012022011021122200210
423221323013203111
5201112204221344
65425445400033
7622056456546
oct135173074325
935264248623
1012514523349
115342138689
122513109019
131245933303
1486a0b44cd
154d3a06db9
hex2e9ec78d5

12514523349 has 4 divisors (see below), whose sum is σ = 16686031136. Its totient is φ = 8343015564.

The previous prime is 12514523347. The next prime is 12514523383. The reversal of 12514523349 is 94332541521.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is not a de Polignac number, because 12514523349 - 21 = 12514523347 is a prime.

It is a super-2 number, since 2×125145233492 (a number of 21 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12514523341) 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, 2085753889 + ... + 2085753894.

It is an arithmetic number, because the mean of its divisors is an integer number (4171507784).

Almost surely, 212514523349 is an apocalyptic number.

It is an amenable number.

12514523349 is a deficient number, since it is larger than the sum of its proper divisors (4171507787).

12514523349 is an equidigital number, since it uses as much as digits as its factorization.

12514523349 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4171507786.

The product of its digits is 129600, while the sum is 39.

The spelling of 12514523349 in words is "twelve billion, five hundred fourteen million, five hundred twenty-three thousand, three hundred forty-nine".

Divisors: 1 3 4171507783 12514523349