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13147308 = 22321732111
BaseRepresentation
bin110010001001…
…110010101100
3220201221201100
4302021302230
511331203213
61145443100
7216515226
oct62116254
926657640
1013147308
11746a849
1244a0490
132954295
141a63416
15124a773
hexc89cac

13147308 has 36 divisors (see below), whose sum is σ = 33441408. Its totient is φ = 4355040.

The previous prime is 13147301. The next prime is 13147319. The reversal of 13147308 is 80374131.

It is a tau number, because it is divible by the number of its divisors (36).

It is not an unprimeable number, because it can be changed into a prime (13147301) by changing a digit.

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 11 ways as a sum of consecutive naturals, for example, 5173 + ... + 7283.

It is an arithmetic number, because the mean of its divisors is an integer number (928928).

Almost surely, 213147308 is an apocalyptic number.

13147308 is a gapful number since it is divisible by the number (18) formed by its first and last digit.

It is an amenable number.

13147308 is an abundant number, since it is smaller than the sum of its proper divisors (20294100).

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

13147308 is a wasteful number, since it uses less digits than its factorization.

13147308 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2294 (or 2289 counting only the distinct ones).

The product of its (nonzero) digits is 2016, while the sum is 27.

The square root of 13147308 is about 3625.9216759329. The cubic root of 13147308 is about 236.0182644104.

The spelling of 13147308 in words is "thirteen million, one hundred forty-seven thousand, three hundred eight".

Divisors: 1 2 3 4 6 9 12 18 36 173 346 519 692 1038 1557 2076 2111 3114 4222 6228 6333 8444 12666 18999 25332 37998 75996 365203 730406 1095609 1460812 2191218 3286827 4382436 6573654 13147308