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12525073741 = 17969972479
BaseRepresentation
bin10111010101000110…
…10111010101001101
31012022220010200010001
423222203113111031
5201122404324431
65430503444301
7622245240655
oct135243272515
935286120101
1012525073741
115348094314
122516756691
131247b8854b
1486b65d365
154d48dce61
hex2ea8d754d

12525073741 has 4 divisors (see below), whose sum is σ = 12595046400. Its totient is φ = 12455101084.

The previous prime is 12525073711. The next prime is 12525073751. The reversal of 12525073741 is 14737052521.

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, and also an emirpimes, since its reverse is a distinct semiprime: 14737052521 = 31475388791.

It is a cyclic number.

It is not a de Polignac number, because 12525073741 - 211 = 12525071693 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 12525073741.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12525073711) 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, 34986061 + ... + 34986418.

It is an arithmetic number, because the mean of its divisors is an integer number (3148761600).

Almost surely, 212525073741 is an apocalyptic number.

It is an amenable number.

12525073741 is a deficient number, since it is larger than the sum of its proper divisors (69972659).

12525073741 is an equidigital number, since it uses as much as digits as its factorization.

12525073741 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 69972658.

The product of its (nonzero) digits is 58800, while the sum is 37.

The spelling of 12525073741 in words is "twelve billion, five hundred twenty-five million, seventy-three thousand, seven hundred forty-one".

Divisors: 1 179 69972479 12525073741