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13308256 = 251331991
BaseRepresentation
bin110010110001…
…000101100000
3221001010111101
4302301011200
511401331011
61153124144
7221055403
oct62610540
927033441
1013308256
11756a765
124559654
1329ac610
141aa5d3a
15127d2c1
hexcb1160

13308256 has 24 divisors (see below), whose sum is σ = 28216944. Its totient is φ = 6142080.

The previous prime is 13308241. The next prime is 13308257. The reversal of 13308256 is 65280331.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (13308257) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 15580 + ... + 16411.

It is an arithmetic number, because the mean of its divisors is an integer number (1175706).

Almost surely, 213308256 is an apocalyptic number.

13308256 is a gapful number since it is divisible by the number (16) formed by its first and last digit.

It is an amenable number.

13308256 is an abundant number, since it is smaller than the sum of its proper divisors (14908688).

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

13308256 is a wasteful number, since it uses less digits than its factorization.

13308256 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 32014 (or 32006 counting only the distinct ones).

The product of its (nonzero) digits is 4320, while the sum is 28.

The square root of 13308256 is about 3648.0482452950. The cubic root of 13308256 is about 236.9774646687.

Adding to 13308256 its reverse (65280331), we get a palindrome (78588587).

The spelling of 13308256 in words is "thirteen million, three hundred eight thousand, two hundred fifty-six".

Divisors: 1 2 4 8 13 16 26 32 52 104 208 416 31991 63982 127964 255928 415883 511856 831766 1023712 1663532 3327064 6654128 13308256