Search a number
-
+
16672 = 25521
BaseRepresentation
bin100000100100000
3211212111
410010200
51013142
6205104
766415
oct40440
924774
1016672
1111587
129794
137786
14610c
154e17
hex4120

16672 has 12 divisors (see below), whose sum is σ = 32886. Its totient is φ = 8320.

The previous prime is 16661. The next prime is 16673. The reversal of 16672 is 27661.

It can be written as a sum of positive squares in only one way, i.e., 15376 + 1296 = 124^2 + 36^2 .

It is not an unprimeable number, because it can be changed into a prime (16673) by changing a digit.

16672 is an untouchable number, because it is not equal to the sum of proper divisors of any number.

It is a pernicious number, because its binary representation contains a prime number (3) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 229 + ... + 292.

216672 is an apocalyptic number.

It is an amenable number.

16672 is a deficient number, since it is larger than the sum of its proper divisors (16214).

16672 is an equidigital number, since it uses as much as digits as its factorization.

16672 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 531 (or 523 counting only the distinct ones).

The product of its digits is 504, while the sum is 22.

The square root of 16672 is about 129.1200991326. The cubic root of 16672 is about 25.5463721116.

The spelling of 16672 in words is "sixteen thousand, six hundred seventy-two".

Divisors: 1 2 4 8 16 32 521 1042 2084 4168 8336 16672