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13442262081 = 320113222779
BaseRepresentation
bin11001000010011100…
…01010010001000001
31021200210222122222120
430201032022101001
5210012204341311
610101510154453
7654053225313
oct144116122101
937623878876
1013442262081
115778896506
122731952a29
131362bbc641
149173b17b3
1553a1b2706
hex32138a441

13442262081 has 8 divisors (see below), whose sum is σ = 17923987680. Its totient is φ = 8961022272.

The previous prime is 13442261983. The next prime is 13442262089. The reversal of 13442262081 is 18026224431.

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

It is not a de Polignac number, because 13442262081 - 27 = 13442261953 is a prime.

It is a super-2 number, since 2×134422620812 (a number of 21 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (13442262089) 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, 51051 + ... + 171728.

It is an arithmetic number, because the mean of its divisors is an integer number (2240498460).

Almost surely, 213442262081 is an apocalyptic number.

It is an amenable number.

13442262081 is a deficient number, since it is larger than the sum of its proper divisors (4481725599).

13442262081 is a wasteful number, since it uses less digits than its factorization.

13442262081 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 242895.

The product of its (nonzero) digits is 18432, while the sum is 33.

The spelling of 13442262081 in words is "thirteen billion, four hundred forty-two million, two hundred sixty-two thousand, eighty-one".

Divisors: 1 3 20113 60339 222779 668337 4480754027 13442262081