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13437806889 = 313344559151
BaseRepresentation
bin11001000001111010…
…01010100100101001
31021200111121022121110
430200331022210221
5210010034310024
610101230500533
7654000321363
oct144075124451
937614538543
1013437806889
115776323231
122730364749
131361cbc830
14916971d33
15539ad2629
hex320f4a929

13437806889 has 8 divisors (see below), whose sum is σ = 19295312512. Its totient is φ = 8269419600.

The previous prime is 13437806861. The next prime is 13437806911. The reversal of 13437806889 is 98860873431.

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

It is not a de Polignac number, because 13437806889 - 27 = 13437806761 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (13437806819) 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, 172279537 + ... + 172279614.

It is an arithmetic number, because the mean of its divisors is an integer number (2411914064).

Almost surely, 213437806889 is an apocalyptic number.

It is an amenable number.

13437806889 is a deficient number, since it is larger than the sum of its proper divisors (5857505623).

13437806889 is a wasteful number, since it uses less digits than its factorization.

13437806889 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 344559167.

The product of its (nonzero) digits is 6967296, while the sum is 57.

The spelling of 13437806889 in words is "thirteen billion, four hundred thirty-seven million, eight hundred six thousand, eight hundred eighty-nine".

Divisors: 1 3 13 39 344559151 1033677453 4479268963 13437806889