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12268502485 = 52453700497
BaseRepresentation
bin10110110110100001…
…00111110111010101
31011200000100111111221
423123100213313111
5200111214034420
65345220330341
7613011356551
oct133320476725
934600314457
1012268502485
115226282558
1224648439b1
131206984b35
14845552861
154bc10bcaa
hex2db427dd5

12268502485 has 4 divisors (see below), whose sum is σ = 14722202988. Its totient is φ = 9814801984.

The previous prime is 12268502443. The next prime is 12268502497. The reversal of 12268502485 is 58420586221.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 58420586221 = 71778139973.

It can be written as a sum of positive squares in 2 ways, for example, as 3434194404 + 8834308081 = 58602^2 + 93991^2 .

It is a cyclic number.

It is not a de Polignac number, because 12268502485 - 231 = 10121018837 is a prime.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1226850244 + ... + 1226850253.

It is an arithmetic number, because the mean of its divisors is an integer number (3680550747).

Almost surely, 212268502485 is an apocalyptic number.

It is an amenable number.

12268502485 is a deficient number, since it is larger than the sum of its proper divisors (2453700503).

12268502485 is an equidigital number, since it uses as much as digits as its factorization.

12268502485 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2453700502.

The product of its (nonzero) digits is 307200, while the sum is 43.

The spelling of 12268502485 in words is "twelve billion, two hundred sixty-eight million, five hundred two thousand, four hundred eighty-five".

Divisors: 1 5 2453700497 12268502485