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13142226 = 232190371
BaseRepresentation
bin110010001000…
…100011010010
3220201200202010
4302020203102
511331022401
61145403350
7216464346
oct62104322
926650663
1013142226
117466a49
124499556
132951b86
141a61626
151248ed6
hexc888d2

13142226 has 8 divisors (see below), whose sum is σ = 26284464. Its totient is φ = 4380740.

The previous prime is 13142197. The next prime is 13142231. The reversal of 13142226 is 62224131.

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

13142226 is an admirable number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1095180 + ... + 1095191.

It is an arithmetic number, because the mean of its divisors is an integer number (3285558).

Almost surely, 213142226 is an apocalyptic number.

13142226 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

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

13142226 is a wasteful number, since it uses less digits than its factorization.

13142226 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2190376.

The product of its digits is 576, while the sum is 21.

The square root of 13142226 is about 3625.2208208604. The cubic root of 13142226 is about 235.9878500879.

Adding to 13142226 its reverse (62224131), we get a palindrome (75366357).

The spelling of 13142226 in words is "thirteen million, one hundred forty-two thousand, two hundred twenty-six".

Divisors: 1 2 3 6 2190371 4380742 6571113 13142226