Search a number
-
+
28814853 = 371135281
BaseRepresentation
bin110110111101…
…0111000000101
32000012221112210
41231322320011
524334033403
62505334033
7466631214
oct155727005
960187483
1028814853
11152a1031
129797319
135c7b712
143b8107b
1527e2b03
hex1b7ae05

28814853 has 8 divisors (see below), whose sum is σ = 38961216. Its totient is φ = 18939200.

The previous prime is 28814843. The next prime is 28814857. The reversal of 28814853 is 35841882.

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

It is a cyclic number.

It is not a de Polignac number, because 28814853 - 26 = 28814789 is a prime.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (28814857) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 67428 + ... + 67853.

It is an arithmetic number, because the mean of its divisors is an integer number (4870152).

Almost surely, 228814853 is an apocalyptic number.

It is an amenable number.

28814853 is a deficient number, since it is larger than the sum of its proper divisors (10146363).

28814853 is a wasteful number, since it uses less digits than its factorization.

28814853 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 135355.

The product of its digits is 61440, while the sum is 39.

The square root of 28814853 is about 5367.9468141926. The cubic root of 28814853 is about 306.5764583180.

The spelling of 28814853 in words is "twenty-eight million, eight hundred fourteen thousand, eight hundred fifty-three".

Divisors: 1 3 71 213 135281 405843 9604951 28814853