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13882729 = 72311911
BaseRepresentation
bin110100111101…
…010101101001
3222010022112011
4310331111221
512023221404
61213315521
7226000300
oct64752551
928108464
1013882729
117922333
124795ba1
132b50c43
141bb5437
151343604
hexd3d569

13882729 has 12 divisors (see below), whose sum is σ = 16219008. Its totient is φ = 11848200.

The previous prime is 13882717. The next prime is 13882741. The reversal of 13882729 is 92728831.

It is an interprime number because it is at equal distance from previous prime (13882717) and next prime (13882741).

It is not a de Polignac number, because 13882729 - 213 = 13874537 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 13882691 and 13882700.

It is not an unprimeable number, because it can be changed into a prime (13882709) 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, 14784 + ... + 15694.

It is an arithmetic number, because the mean of its divisors is an integer number (1351584).

Almost surely, 213882729 is an apocalyptic number.

It is an amenable number.

13882729 is a deficient number, since it is larger than the sum of its proper divisors (2336279).

13882729 is an equidigital number, since it uses as much as digits as its factorization.

13882729 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1236 (or 1229 counting only the distinct ones).

The product of its digits is 48384, while the sum is 40.

The square root of 13882729 is about 3725.9534350284. The cubic root of 13882729 is about 240.3393867413.

The spelling of 13882729 in words is "thirteen million, eight hundred eighty-two thousand, seven hundred twenty-nine".

Divisors: 1 7 49 311 911 2177 6377 15239 44639 283321 1983247 13882729