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13142208 = 26368449
BaseRepresentation
bin110010001000…
…100011000000
3220201200201110
4302020203000
511331022313
61145403320
7216464322
oct62104300
926650643
1013142208
117466a32
124499540
132951b71
141a61612
151248ec3
hexc888c0

13142208 has 28 divisors (see below), whose sum is σ = 34772600. Its totient is φ = 4380672.

The previous prime is 13142197. The next prime is 13142231. The reversal of 13142208 is 80224131.

It is a super-2 number, since 2×131422082 = 345435262230528, which contains 22 as substring.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 34033 + ... + 34416.

Almost surely, 213142208 is an apocalyptic number.

It is an amenable number.

13142208 is an abundant number, since it is smaller than the sum of its proper divisors (21630392).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

13142208 is an equidigital number, since it uses as much as digits as its factorization.

13142208 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 68464 (or 68454 counting only the distinct ones).

The product of its (nonzero) digits is 384, while the sum is 21.

The square root of 13142208 is about 3625.2183382522. The cubic root of 13142208 is about 235.9877423491.

Adding to 13142208 its reverse (80224131), we get a palindrome (93366339).

The spelling of 13142208 in words is "thirteen million, one hundred forty-two thousand, two hundred eight".

Divisors: 1 2 3 4 6 8 12 16 24 32 48 64 96 192 68449 136898 205347 273796 410694 547592 821388 1095184 1642776 2190368 3285552 4380736 6571104 13142208