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228326148 = 223310132087
BaseRepresentation
bin11011001101111…
…11101100000100
3120220122011121000
431212333230010
5431422414043
634353453300
75441511621
oct1546775404
9526564530
10228326148
1110797a8a6
1264571230
13383c443b
1422477348
15150a22d3
hexd9bfb04

228326148 has 48 divisors (see below), whose sum is σ = 592824960. Its totient is φ = 75997152.

The previous prime is 228326143. The next prime is 228326159. The reversal of 228326148 is 841623822.

228326148 is a `hidden beast` number, since 2 + 2 + 8 + 32 + 614 + 8 = 666.

228326148 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 not an unprimeable number, because it can be changed into a prime (228326143) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 108361 + ... + 110447.

It is an arithmetic number, because the mean of its divisors is an integer number (12350520).

Almost surely, 2228326148 is an apocalyptic number.

It is an amenable number.

228326148 is an abundant number, since it is smaller than the sum of its proper divisors (364498812).

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

228326148 is a wasteful number, since it uses less digits than its factorization.

228326148 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3113 (or 3105 counting only the distinct ones).

The product of its digits is 36864, while the sum is 36.

The square root of 228326148 is about 15110.4648505597. The cubic root of 228326148 is about 611.2026332372.

The spelling of 228326148 in words is "two hundred twenty-eight million, three hundred twenty-six thousand, one hundred forty-eight".

Divisors: 1 2 3 4 6 9 12 18 27 36 54 108 1013 2026 2087 3039 4052 4174 6078 6261 8348 9117 12156 12522 18234 18783 25044 27351 36468 37566 54702 56349 75132 109404 112698 225396 2114131 4228262 6342393 8456524 12684786 19027179 25369572 38054358 57081537 76108716 114163074 228326148