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228004878 = 23371278087
BaseRepresentation
bin11011001011100…
…01010000001110
3120220000211220010
431211301100032
5431332124003
634342534050
75436003153
oct1545612016
9526024803
10228004878
11107780492
1264437326
133831113a
14223d222a
151503c003
hexd97140e

228004878 has 32 divisors (see below), whose sum is σ = 472080384. Its totient is φ = 73356192.

The previous prime is 228004871. The next prime is 228004919. The reversal of 228004878 is 878400822.

228004878 is a modest number, since divided by 4878 gives 2280 as remainder.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (228004871) 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 15 ways as a sum of consecutive naturals, for example, 24151 + ... + 32237.

It is an arithmetic number, because the mean of its divisors is an integer number (14752512).

Almost surely, 2228004878 is an apocalyptic number.

228004878 is an abundant number, since it is smaller than the sum of its proper divisors (244075506).

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

228004878 is a wasteful number, since it uses less digits than its factorization.

228004878 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8256.

The product of its (nonzero) digits is 57344, while the sum is 39.

The square root of 228004878 is about 15099.8303963985. The cubic root of 228004878 is about 610.9158311613.

The spelling of 228004878 in words is "two hundred twenty-eight million, four thousand, eight hundred seventy-eight".

Divisors: 1 2 3 6 37 74 111 127 222 254 381 762 4699 8087 9398 14097 16174 24261 28194 48522 299219 598438 897657 1027049 1795314 2054098 3081147 6162294 38000813 76001626 114002439 228004878