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13728348 = 2232381343
BaseRepresentation
bin110100010111…
…101001011100
3221211110202100
4310113221130
512003301343
61210125100
7224455224
oct64275134
927743670
1013728348
117827347
124720790
132ac88aa
141b75084
1513129d3
hexd17a5c

13728348 has 18 divisors (see below), whose sum is σ = 34702304. Its totient is φ = 4576104.

The previous prime is 13728343. The next prime is 13728353. The reversal of 13728348 is 84382731.

It is an interprime number because it is at equal distance from previous prime (13728343) and next prime (13728353).

It is a tau number, because it is divible by the number of its divisors (18).

It is a Harshad number since it is a multiple of its sum of digits (36), and also a Moran number because the ratio is a prime number: 381343 = 13728348 / (1 + 3 + 7 + 2 + 8 + 3 + 4 + 8).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (13728343) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 190636 + ... + 190707.

Almost surely, 213728348 is an apocalyptic number.

13728348 is a gapful number since it is divisible by the number (18) formed by its first and last digit.

It is an amenable number.

13728348 is an abundant number, since it is smaller than the sum of its proper divisors (20973956).

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

13728348 is a wasteful number, since it uses less digits than its factorization.

13728348 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 381353 (or 381348 counting only the distinct ones).

The product of its digits is 32256, while the sum is 36.

The square root of 13728348 is about 3705.1785382084. The cubic root of 13728348 is about 239.4451767013.

The spelling of 13728348 in words is "thirteen million, seven hundred twenty-eight thousand, three hundred forty-eight".

Divisors: 1 2 3 4 6 9 12 18 36 381343 762686 1144029 1525372 2288058 3432087 4576116 6864174 13728348