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12442664873 = 79367429161
BaseRepresentation
bin10111001011010001…
…11111111110101001
31012010011001212101202
423211220333332221
5200440310233443
65414401253545
7620224622612
oct134550777651
935104055352
1012442664873
115305618311
1224b30342b5
131233a938c2
1486072ac09
154cc5607b8
hex2e5a3ffa9

12442664873 has 8 divisors (see below), whose sum is σ = 12634529280. Its totient is φ = 12251659680.

The previous prime is 12442664863. The next prime is 12442664891. The reversal of 12442664873 is 37846624421.

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 12442664873 - 28 = 12442664617 is a prime.

It is a super-3 number, since 3×124426648733 (a number of 31 digits) contains 333 as substring. Note that it is a super-d number also for d = 2.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (12442664863) 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, 185588 + ... + 243573.

It is an arithmetic number, because the mean of its divisors is an integer number (1579316160).

Almost surely, 212442664873 is an apocalyptic number.

It is an amenable number.

12442664873 is a deficient number, since it is larger than the sum of its proper divisors (191864407).

12442664873 is an equidigital number, since it uses as much as digits as its factorization.

12442664873 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 429607.

The product of its digits is 1548288, while the sum is 47.

The spelling of 12442664873 in words is "twelve billion, four hundred forty-two million, six hundred sixty-four thousand, eight hundred seventy-three".

Divisors: 1 79 367 28993 429161 33903719 157502087 12442664873