Search a number
-
+
8874385 = 513311439
BaseRepresentation
bin100001110110…
…100110010001
3121200212100221
4201312212101
54232440020
6514113041
7135300562
oct41664621
917625327
108874385
115011503
122b7b781
131ab9420
141270169
15ba46aa
hex876991

8874385 has 16 divisors (see below), whose sum is σ = 11531520. Its totient is φ = 6517440.

The previous prime is 8874353. The next prime is 8874419. The reversal of 8874385 is 5834788.

It is a happy number.

It is not a de Polignac number, because 8874385 - 25 = 8874353 is a prime.

Its product of digits (215040) is a multiple of the sum of its prime divisors (768).

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 19996 + ... + 20434.

It is an arithmetic number, because the mean of its divisors is an integer number (720720).

Almost surely, 28874385 is an apocalyptic number.

It is an amenable number.

8874385 is a deficient number, since it is larger than the sum of its proper divisors (2657135).

8874385 is a wasteful number, since it uses less digits than its factorization.

8874385 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 768.

The product of its digits is 215040, while the sum is 43.

The square root of 8874385 is about 2978.9906008579. The cubic root of 8874385 is about 207.0361050078.

The spelling of 8874385 in words is "eight million, eight hundred seventy-four thousand, three hundred eighty-five".

Divisors: 1 5 13 65 311 439 1555 2195 4043 5707 20215 28535 136529 682645 1774877 8874385