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12136452241 = 21157518731
BaseRepresentation
bin10110100110110001…
…11001000010010001
31011022210212122122011
423103120321002101
5144323412432431
65324142142521
7606516066454
oct132330710221
934283778564
1012136452241
115168790221
122428581a41
1311b54cc0b4
14831bbb49b
154b0725cb1
hex2d3639091

12136452241 has 4 divisors (see below), whose sum is σ = 12193971184. Its totient is φ = 12078933300.

The previous prime is 12136452233. The next prime is 12136452247. The reversal of 12136452241 is 14225463121.

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 a cyclic number.

It is not a de Polignac number, because 12136452241 - 23 = 12136452233 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (12136452247) 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, 28759155 + ... + 28759576.

It is an arithmetic number, because the mean of its divisors is an integer number (3048492796).

Almost surely, 212136452241 is an apocalyptic number.

It is an amenable number.

12136452241 is a deficient number, since it is larger than the sum of its proper divisors (57518943).

12136452241 is an equidigital number, since it uses as much as digits as its factorization.

12136452241 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 57518942.

The product of its digits is 11520, while the sum is 31.

The spelling of 12136452241 in words is "twelve billion, one hundred thirty-six million, four hundred fifty-two thousand, two hundred forty-one".

Divisors: 1 211 57518731 12136452241