Search a number
-
+
228318804 = 22337302009
BaseRepresentation
bin11011001101111…
…01111001010100
3120220121210112000
431212331321110
5431422200204
634353355300
75441451330
oct1546757124
9526553460
10228318804
1110797532a
1264568b30
13383c0cac
14224747c0
15150a0039
hexd9bde54

228318804 has 48 divisors (see below), whose sum is σ = 676502400. Its totient is φ = 65233728.

The previous prime is 228318803. The next prime is 228318817. The reversal of 228318804 is 408813822.

It is a happy number.

228318804 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (228318803) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 150249 + ... + 151760.

It is an arithmetic number, because the mean of its divisors is an integer number (14093800).

Almost surely, 2228318804 is an apocalyptic number.

It is an amenable number.

228318804 is an abundant number, since it is smaller than the sum of its proper divisors (448183596).

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

228318804 is a wasteful number, since it uses less digits than its factorization.

228318804 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 302029 (or 302021 counting only the distinct ones).

The product of its (nonzero) digits is 24576, while the sum is 36.

The square root of 228318804 is about 15110.2218382127. The cubic root of 228318804 is about 611.1960801547.

The spelling of 228318804 in words is "two hundred twenty-eight million, three hundred eighteen thousand, eight hundred four".

Divisors: 1 2 3 4 6 7 9 12 14 18 21 27 28 36 42 54 63 84 108 126 189 252 378 756 302009 604018 906027 1208036 1812054 2114063 2718081 3624108 4228126 5436162 6342189 8154243 8456252 10872324 12684378 16308486 19026567 25368756 32616972 38053134 57079701 76106268 114159402 228318804