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12738086 = 231205453
BaseRepresentation
bin110000100101…
…111000100110
3212222011100222
4300211320212
511230104321
61133004342
7213162164
oct60457046
925864328
1012738086
117210349
1243236b2
13283cc3a
141998234
1511b93ab
hexc25e26

12738086 has 8 divisors (see below), whose sum is σ = 19723584. Its totient is φ = 6163560.

The previous prime is 12738059. The next prime is 12738119. The reversal of 12738086 is 68083721.

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

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 102665 + ... + 102788.

It is an arithmetic number, because the mean of its divisors is an integer number (2465448).

Almost surely, 212738086 is an apocalyptic number.

12738086 is a deficient number, since it is larger than the sum of its proper divisors (6985498).

12738086 is a wasteful number, since it uses less digits than its factorization.

12738086 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 205486.

The product of its (nonzero) digits is 16128, while the sum is 35.

The square root of 12738086 is about 3569.0455306706. The cubic root of 12738086 is about 233.5436475652.

The spelling of 12738086 in words is "twelve million, seven hundred thirty-eight thousand, eighty-six".

Divisors: 1 2 31 62 205453 410906 6369043 12738086