Search a number
-
+
13489792 = 27105389
BaseRepresentation
bin110011011101…
…011010000000
3221101100111221
4303131122000
511423133132
61201044424
7222442561
oct63353200
927340457
1013489792
117684098
124626714
132a44134
141b12168
1512b6e97
hexcdd680

13489792 has 16 divisors (see below), whose sum is σ = 26874450. Its totient is φ = 6744832.

The previous prime is 13489783. The next prime is 13489837. The reversal of 13489792 is 29798431.

It can be written as a sum of positive squares in only one way, i.e., 9585216 + 3904576 = 3096^2 + 1976^2 .

It is a tau number, because it is divible by the number of its divisors (16).

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 52567 + ... + 52822.

Almost surely, 213489792 is an apocalyptic number.

It is an amenable number.

13489792 is a deficient number, since it is larger than the sum of its proper divisors (13384658).

13489792 is an equidigital number, since it uses as much as digits as its factorization.

13489792 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 105403 (or 105391 counting only the distinct ones).

The product of its digits is 108864, while the sum is 43.

The square root of 13489792 is about 3672.8452186282. The cubic root of 13489792 is about 238.0501271437.

The spelling of 13489792 in words is "thirteen million, four hundred eighty-nine thousand, seven hundred ninety-two".

Divisors: 1 2 4 8 16 32 64 128 105389 210778 421556 843112 1686224 3372448 6744896 13489792