Search a number
-
+
28554655 = 541139291
BaseRepresentation
bin110110011101…
…1010110011111
31222201201121211
41230323112133
524302222110
62500005251
7464465503
oct154732637
958651554
1028554655
1115133598
129690827
135bba15c
143b14303
15279098a
hex1b3b59f

28554655 has 8 divisors (see below), whose sum is σ = 35101584. Its totient is φ = 22286400.

The previous prime is 28554637. The next prime is 28554667. The reversal of 28554655 is 55645582.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 28554655 - 211 = 28552607 is a prime.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 69441 + ... + 69850.

It is an arithmetic number, because the mean of its divisors is an integer number (4387698).

Almost surely, 228554655 is an apocalyptic number.

28554655 is a deficient number, since it is larger than the sum of its proper divisors (6546929).

28554655 is a wasteful number, since it uses less digits than its factorization.

28554655 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 139337.

The product of its digits is 240000, while the sum is 40.

The square root of 28554655 is about 5343.6555839612. The cubic root of 28554655 is about 305.6508719837.

The spelling of 28554655 in words is "twenty-eight million, five hundred fifty-four thousand, six hundred fifty-five".

Divisors: 1 5 41 205 139291 696455 5710931 28554655