Search a number
-
+
808416 = 25327401
BaseRepresentation
bin11000101010111100000
31112001221100
43011113200
5201332131
625154400
76604620
oct3052740
91461840
10808416
11502414
1232ba00
13223c6b
14170880
1510e7e6
hexc55e0

808416 has 72 divisors (see below), whose sum is σ = 2633904. Its totient is φ = 230400.

The previous prime is 808399. The next prime is 808417. The reversal of 808416 is 614808.

It is a tau number, because it is divible by the number of its divisors (72).

It is a self number, because there is not a number n which added to its sum of digits gives 808416.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (808417) by changing a digit.

808416 is an untouchable number, because it is not equal to the sum of proper divisors of any number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 1816 + ... + 2216.

It is an arithmetic number, because the mean of its divisors is an integer number (36582).

2808416 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 808416, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1316952).

808416 is an abundant number, since it is smaller than the sum of its proper divisors (1825488).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

808416 is a wasteful number, since it uses less digits than its factorization.

808416 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 424 (or 413 counting only the distinct ones).

The product of its (nonzero) digits is 1536, while the sum is 27.

The square root of 808416 is about 899.1195693566. The cubic root of 808416 is about 93.1561718687.

It can be divided in two parts, 8084 and 16, that added together give a square (8100 = 902).

The spelling of 808416 in words is "eight hundred eight thousand, four hundred sixteen".

Divisors: 1 2 3 4 6 7 8 9 12 14 16 18 21 24 28 32 36 42 48 56 63 72 84 96 112 126 144 168 224 252 288 336 401 504 672 802 1008 1203 1604 2016 2406 2807 3208 3609 4812 5614 6416 7218 8421 9624 11228 12832 14436 16842 19248 22456 25263 28872 33684 38496 44912 50526 57744 67368 89824 101052 115488 134736 202104 269472 404208 808416