Search a number
-
+
228204504 = 233211288137
BaseRepresentation
bin11011001101000…
…01111111011000
3120220101222201200
431212201333120
5431410021004
634351114200
75440464153
oct1546417730
9526358650
10228204504
111078a7470
1264512960
1338380c68
1422444c9a
151507b239
hexd9a1fd8

228204504 has 48 divisors (see below), whose sum is σ = 674242920. Its totient is φ = 69152640.

The previous prime is 228204503. The next prime is 228204523. The reversal of 228204504 is 405402822.

It is a happy number.

It is a super-3 number, since 3×2282045043 (a number of 26 digits) contains 333 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (228204503) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 143277 + ... + 144860.

Almost surely, 2228204504 is an apocalyptic number.

228204504 is a gapful number since it is divisible by the number (24) formed by its first and last digit.

It is an amenable number.

228204504 is an abundant number, since it is smaller than the sum of its proper divisors (446038416).

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

228204504 is a wasteful number, since it uses less digits than its factorization.

228204504 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 288160 (or 288153 counting only the distinct ones).

The product of its (nonzero) digits is 5120, while the sum is 27.

The square root of 228204504 is about 15106.4391568629. The cubic root of 228204504 is about 611.0940716596.

The spelling of 228204504 in words is "two hundred twenty-eight million, two hundred four thousand, five hundred four".

Divisors: 1 2 3 4 6 8 9 11 12 18 22 24 33 36 44 66 72 88 99 132 198 264 396 792 288137 576274 864411 1152548 1728822 2305096 2593233 3169507 3457644 5186466 6339014 6915288 9508521 10372932 12678028 19017042 20745864 25356056 28525563 38034084 57051126 76068168 114102252 228204504