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13728482 = 26864241
BaseRepresentation
bin110100010111…
…101011100010
3221211110221022
4310113223202
512003302412
61210125442
7224455505
oct64275342
927743838
1013728482
117827459
124720882
132ac8981
141b7513c
151312a72
hexd17ae2

13728482 has 4 divisors (see below), whose sum is σ = 20592726. Its totient is φ = 6864240.

The previous prime is 13728479. The next prime is 13728509. The reversal of 13728482 is 28482731.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 28482731 = 77336847.

It can be written as a sum of positive squares in only one way, i.e., 12453841 + 1274641 = 3529^2 + 1129^2 .

It is an unprimeable number.

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 as a sum of consecutive naturals, namely, 3432119 + ... + 3432122.

Almost surely, 213728482 is an apocalyptic number.

13728482 is a deficient number, since it is larger than the sum of its proper divisors (6864244).

13728482 is an equidigital number, since it uses as much as digits as its factorization.

13728482 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6864243.

The product of its digits is 21504, while the sum is 35.

The square root of 13728482 is about 3705.1966209636. The cubic root of 13728482 is about 239.4459557596.

The spelling of 13728482 in words is "thirteen million, seven hundred twenty-eight thousand, four hundred eighty-two".

Divisors: 1 2 6864241 13728482