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228549994 = 2711609507
BaseRepresentation
bin11011001111101…
…10010101101010
3120221001112122121
431213312111222
5432002044434
634402341454
75443433341
oct1547662552
9527045577
10228549994
11108012aa2
126465a88a
13384722aa
14224d4b58
15150e87b4
hexd9f656a

228549994 has 8 divisors (see below), whose sum is σ = 347653728. Its totient is φ = 112665420.

The previous prime is 228549983. The next prime is 228550019. The reversal of 228549994 is 499945822.

It is a sphenic number, since it is the product of 3 distinct primes.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 804612 + ... + 804895.

It is an arithmetic number, because the mean of its divisors is an integer number (43456716).

Almost surely, 2228549994 is an apocalyptic number.

228549994 is a deficient number, since it is larger than the sum of its proper divisors (119103734).

228549994 is a wasteful number, since it uses less digits than its factorization.

228549994 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1609580.

The product of its digits is 1866240, while the sum is 52.

The square root of 228549994 is about 15117.8700219310. The cubic root of 228549994 is about 611.4023045991.

The spelling of 228549994 in words is "two hundred twenty-eight million, five hundred forty-nine thousand, nine hundred ninety-four".

Divisors: 1 2 71 142 1609507 3219014 114274997 228549994