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12442134313 = 78212164979
BaseRepresentation
bin10111001011001101…
…11110011100101001
31012010010001220121101
423211212332130221
5200440141244223
65414342041401
7620220253030
oct134546763451
935103056541
1012442134313
115305295734
1224b2a19261
13123393926b
1486062d717
154cc4a84ad
hex2e59be729

12442134313 has 8 divisors (see below), whose sum is σ = 14236908480. Its totient is φ = 10651691760.

The previous prime is 12442134283. The next prime is 12442134371. The reversal of 12442134313 is 31343124421.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 12442134313 - 29 = 12442133801 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (12442134013) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1076743 + ... + 1088236.

It is an arithmetic number, because the mean of its divisors is an integer number (1779613560).

Almost surely, 212442134313 is an apocalyptic number.

It is an amenable number.

12442134313 is a deficient number, since it is larger than the sum of its proper divisors (1794774167).

12442134313 is an equidigital number, since it uses as much as digits as its factorization.

12442134313 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2165807.

The product of its digits is 6912, while the sum is 28.

Adding to 12442134313 its reverse (31343124421), we get a palindrome (43785258734).

The spelling of 12442134313 in words is "twelve billion, four hundred forty-two million, one hundred thirty-four thousand, three hundred thirteen".

Divisors: 1 7 821 5747 2164979 15154853 1777447759 12442134313