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13308912 = 2432293187
BaseRepresentation
bin110010110001…
…001111110000
3221001011101200
4302301033300
511401341122
61153131200
7221060331
oct62611760
927034350
1013308912
117570201
124559b00
1329ac9c6
141aa6288
15127d5ac
hexcb13f0

13308912 has 60 divisors (see below), whose sum is σ = 38542920. Its totient is φ = 4281984.

The previous prime is 13308907. The next prime is 13308917. The reversal of 13308912 is 21980331.

13308912 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is an interprime number because it is at equal distance from previous prime (13308907) and next prime (13308917).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (13308917) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 2583 + ... + 5769.

It is an arithmetic number, because the mean of its divisors is an integer number (642382).

Almost surely, 213308912 is an apocalyptic number.

13308912 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 13308912, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (19271460).

13308912 is an abundant number, since it is smaller than the sum of its proper divisors (25234008).

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

13308912 is a wasteful number, since it uses less digits than its factorization.

13308912 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3230 (or 3221 counting only the distinct ones).

The product of its (nonzero) digits is 1296, while the sum is 27.

The square root of 13308912 is about 3648.1381552787. The cubic root of 13308912 is about 236.9813583586.

The spelling of 13308912 in words is "thirteen million, three hundred eight thousand, nine hundred twelve".

Divisors: 1 2 3 4 6 8 9 12 16 18 24 29 36 48 58 72 87 116 144 174 232 261 348 464 522 696 1044 1392 2088 3187 4176 6374 9561 12748 19122 25496 28683 38244 50992 57366 76488 92423 114732 152976 184846 229464 277269 369692 458928 554538 739384 831807 1109076 1478768 1663614 2218152 3327228 4436304 6654456 13308912