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228945168 = 24323151287
BaseRepresentation
bin11011010010101…
…10110100010000
3120221210121201200
431221112310100
5432102221133
634415031200
75450000424
oct1551266420
9527717650
10228945168
11108262991
126480b500
133858011a
1422598b84
1515175913
hexda56d10

228945168 has 60 divisors (see below), whose sum is σ = 661410048. Its totient is φ = 73851840.

The previous prime is 228945149. The next prime is 228945179. The reversal of 228945168 is 861549822.

It is an unprimeable number.

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 11 ways as a sum of consecutive naturals, for example, 21180 + ... + 30107.

Almost surely, 2228945168 is an apocalyptic number.

It is an amenable number.

228945168 is an abundant number, since it is smaller than the sum of its proper divisors (432464880).

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

228945168 is a wasteful number, since it uses less digits than its factorization.

228945168 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 51332 (or 51323 counting only the distinct ones).

The product of its digits is 276480, while the sum is 45.

The square root of 228945168 is about 15130.9341416847. The cubic root of 228945168 is about 611.7544830900.

The spelling of 228945168 in words is "two hundred twenty-eight million, nine hundred forty-five thousand, one hundred sixty-eight".

Divisors: 1 2 3 4 6 8 9 12 16 18 24 31 36 48 62 72 93 124 144 186 248 279 372 496 558 744 1116 1488 2232 4464 51287 102574 153861 205148 307722 410296 461583 615444 820592 923166 1230888 1589897 1846332 2461776 3179794 3692664 4769691 6359588 7385328 9539382 12719176 14309073 19078764 25438352 28618146 38157528 57236292 76315056 114472584 228945168