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13982320 = 2451115889
BaseRepresentation
bin110101010101…
…101001110000
3222022101010201
4311111221300
512034413240
61215404544
7226563532
oct65255160
928271121
1013982320
117990140
124823754
132b87381
141bdd852
151362d9a
hexd55a70

13982320 has 40 divisors (see below), whose sum is σ = 35466480. Its totient is φ = 5084160.

The previous prime is 13982231. The next prime is 13982327. The reversal of 13982320 is 2328931.

13982320 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a tau number, because it is divible by the number of its divisors (40).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (13982327) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 7065 + ... + 8824.

It is an arithmetic number, because the mean of its divisors is an integer number (886662).

Almost surely, 213982320 is an apocalyptic number.

13982320 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

13982320 is an abundant number, since it is smaller than the sum of its proper divisors (21484160).

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

13982320 is a wasteful number, since it uses less digits than its factorization.

13982320 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 15913 (or 15907 counting only the distinct ones).

The product of its (nonzero) digits is 2592, while the sum is 28.

The square root of 13982320 is about 3739.2940510209. The cubic root of 13982320 is about 240.9127281671.

The spelling of 13982320 in words is "thirteen million, nine hundred eighty-two thousand, three hundred twenty".

Divisors: 1 2 4 5 8 10 11 16 20 22 40 44 55 80 88 110 176 220 440 880 15889 31778 63556 79445 127112 158890 174779 254224 317780 349558 635560 699116 873895 1271120 1398232 1747790 2796464 3495580 6991160 13982320