Search a number
-
+
28058995 = 553105883
BaseRepresentation
bin110101100001…
…0010101110011
31221210112201001
41223002111303
524140341440
62441222431
7460332436
oct153022563
957715631
1028058995
1114925158
129491a17
135a75673
143a2581d
1526e3b9a
hex1ac2573

28058995 has 8 divisors (see below), whose sum is σ = 34306416. Its totient is φ = 22023456.

The previous prime is 28058977. The next prime is 28059001. The reversal of 28058995 is 59985082.

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 28058995 - 27 = 28058867 is a prime.

It is a Duffinian 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 in 7 ways as a sum of consecutive naturals, for example, 52677 + ... + 53206.

It is an arithmetic number, because the mean of its divisors is an integer number (4288302).

Almost surely, 228058995 is an apocalyptic number.

28058995 is a deficient number, since it is larger than the sum of its proper divisors (6247421).

28058995 is a wasteful number, since it uses less digits than its factorization.

28058995 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 105941.

The product of its (nonzero) digits is 259200, while the sum is 46.

The square root of 28058995 is about 5297.0741924198. The cubic root of 28058995 is about 303.8720137317.

The spelling of 28058995 in words is "twenty-eight million, fifty-eight thousand, nine hundred ninety-five".

Divisors: 1 5 53 265 105883 529415 5611799 28058995