Search a number
-
+
28067548 = 227016887
BaseRepresentation
bin110101100010…
…0011011011100
31221210222102211
41223010123130
524141130143
62441330204
7460366405
oct153043334
957728384
1028067548
1114930623
129496964
135a79522
143a289ac
1526e649d
hex1ac46dc

28067548 has 6 divisors (see below), whose sum is σ = 49118216. Its totient is φ = 14033772.

The previous prime is 28067537. The next prime is 28067587. The reversal of 28067548 is 84576082.

It is a super-3 number, since 3×280675483 (a number of 23 digits) contains 333 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 28067548.

It is a congruent number.

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, 3508440 + ... + 3508447.

Almost surely, 228067548 is an apocalyptic number.

It is an amenable number.

28067548 is a deficient number, since it is larger than the sum of its proper divisors (21050668).

28067548 is a wasteful number, since it uses less digits than its factorization.

28067548 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7016891 (or 7016889 counting only the distinct ones).

The product of its (nonzero) digits is 107520, while the sum is 40.

The square root of 28067548 is about 5297.8814633776. The cubic root of 28067548 is about 303.9028862238.

The spelling of 28067548 in words is "twenty-eight million, sixty-seven thousand, five hundred forty-eight".

Divisors: 1 2 4 7016887 14033774 28067548