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228794939 = 3723925873
BaseRepresentation
bin11011010001100…
…10001000111011
3120221111222122122
431220302020323
5432032414224
634411511455
75445503432
oct1550621073
9527458578
10228794939
1110817002a
126475858b
1338529929
142255a119
151514615e
hexda3223b

228794939 has 8 divisors (see below), whose sum is σ = 235970880. Its totient is φ = 221671296.

The previous prime is 228794933. The next prime is 228794963. The reversal of 228794939 is 939497822.

228794939 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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

It is a cyclic number.

It is not a de Polignac number, because 228794939 - 212 = 228790843 is a prime.

It is a super-2 number, since 2×2287949392 = 104694248224027442, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (228794933) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 4094 + ... + 21779.

It is an arithmetic number, because the mean of its divisors is an integer number (29496360).

Almost surely, 2228794939 is an apocalyptic number.

228794939 is a deficient number, since it is larger than the sum of its proper divisors (7175941).

228794939 is a wasteful number, since it uses less digits than its factorization.

228794939 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 26149.

The product of its digits is 1959552, while the sum is 53.

The square root of 228794939 is about 15125.9690268095. The cubic root of 228794939 is about 611.6206470074.

The spelling of 228794939 in words is "two hundred twenty-eight million, seven hundred ninety-four thousand, nine hundred thirty-nine".

Divisors: 1 37 239 8843 25873 957301 6183647 228794939