Search a number
-
+
28846685 = 57824191
BaseRepresentation
bin110111000001…
…0101001011101
32000021120012202
41232002221131
524341043220
62510141245
7500123060
oct156025135
960246182
1028846685
1115312a3a
1297b1825
135c9005a
143b8c8d7
1527ec275
hex1b82a5d

28846685 has 8 divisors (see below), whose sum is σ = 39561216. Its totient is φ = 19780560.

The previous prime is 28846667. The next prime is 28846687. The reversal of 28846685 is 58664882.

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

It is not a de Polignac number, because 28846685 - 26 = 28846621 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (28846687) by changing a digit.

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, 412061 + ... + 412130.

It is an arithmetic number, because the mean of its divisors is an integer number (4945152).

Almost surely, 228846685 is an apocalyptic number.

It is an amenable number.

28846685 is a deficient number, since it is larger than the sum of its proper divisors (10714531).

28846685 is an equidigital number, since it uses as much as digits as its factorization.

28846685 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 824203.

The product of its digits is 737280, while the sum is 47.

The square root of 28846685 is about 5370.9110028002. The cubic root of 28846685 is about 306.6893092660.

The spelling of 28846685 in words is "twenty-eight million, eight hundred forty-six thousand, six hundred eighty-five".

Divisors: 1 5 7 35 824191 4120955 5769337 28846685