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228523670 = 2541775471
BaseRepresentation
bin11011001111011…
…11111010010110
3120221000012112122
431213233322112
5432000224140
634402015542
75443263524
oct1547577226
9527005478
10228523670
11107aa5241
12646475b2
133846330b
14224c9314
15150e0ab5
hexd9efe96

228523670 has 16 divisors (see below), whose sum is σ = 411516288. Its totient is φ = 91370880.

The previous prime is 228523663. The next prime is 228523721. The reversal of 228523670 is 76325822.

It is a self number, because there is not a number n which added to its sum of digits gives 228523670.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 39035 + ... + 44505.

It is an arithmetic number, because the mean of its divisors is an integer number (25719768).

Almost surely, 2228523670 is an apocalyptic number.

228523670 is a deficient number, since it is larger than the sum of its proper divisors (182992618).

228523670 is a wasteful number, since it uses less digits than its factorization.

228523670 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9655.

The product of its (nonzero) digits is 40320, while the sum is 35.

The square root of 228523670 is about 15116.9993715684. Note that the first 3 decimals coincide. The cubic root of 228523670 is about 611.3788302716.

The spelling of 228523670 in words is "two hundred twenty-eight million, five hundred twenty-three thousand, six hundred seventy".

Divisors: 1 2 5 10 4177 5471 8354 10942 20885 27355 41770 54710 22852367 45704734 114261835 228523670