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228453084 = 22326345919
BaseRepresentation
bin11011001110111…
…10101011011100
3120220212121201100
431213132223130
5431440444314
634400313100
75442550656
oct1547365334
9526777640
10228453084
11107a57202
1264612790
133843a152
14224ab6d6
15150c9c09
hexd9deadc

228453084 has 18 divisors (see below), whose sum is σ = 577478720. Its totient is φ = 76151016.

The previous prime is 228453083. The next prime is 228453119. The reversal of 228453084 is 480354822.

It is a tau number, because it is divible by the number of its divisors (18).

It is a super-2 number, since 2×2284530842 = 104381623178222112, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (36), and also a Moran number because the ratio is a prime number: 6345919 = 228453084 / (2 + 2 + 8 + 4 + 5 + 3 + 0 + 8 + 4).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (228453083) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 3172924 + ... + 3172995.

Almost surely, 2228453084 is an apocalyptic number.

It is an amenable number.

228453084 is an abundant number, since it is smaller than the sum of its proper divisors (349025636).

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

228453084 is a wasteful number, since it uses less digits than its factorization.

228453084 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6345929 (or 6345924 counting only the distinct ones).

The product of its (nonzero) digits is 61440, while the sum is 36.

The square root of 228453084 is about 15114.6645348152. The cubic root of 228453084 is about 611.3158765739.

The spelling of 228453084 in words is "two hundred twenty-eight million, four hundred fifty-three thousand, eighty-four".

Divisors: 1 2 3 4 6 9 12 18 36 6345919 12691838 19037757 25383676 38075514 57113271 76151028 114226542 228453084