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228053617 = 11173119839
BaseRepresentation
bin11011001011111…
…01001001110001
3120220010022202021
431211331021301
5431340203432
634343551441
75436265231
oct1545751161
9526108667
10228053617
11107804070
126445b581
133832a38c
1422405cc1
151504b697
hexd97d271

228053617 has 8 divisors (see below), whose sum is σ = 250225920. Its totient is φ = 206121360.

The previous prime is 228053611. The next prime is 228053621. The reversal of 228053617 is 716350822.

It is a happy number.

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 228053617 - 27 = 228053489 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (228053611) 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, 58017 + ... + 61822.

It is an arithmetic number, because the mean of its divisors is an integer number (31278240).

Almost surely, 2228053617 is an apocalyptic number.

It is an amenable number.

228053617 is a deficient number, since it is larger than the sum of its proper divisors (22172303).

228053617 is a wasteful number, since it uses less digits than its factorization.

228053617 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 120023.

The product of its (nonzero) digits is 20160, while the sum is 34.

The square root of 228053617 is about 15101.4442024596. Note that the first 3 decimals coincide. The cubic root of 228053617 is about 610.9593584542.

The spelling of 228053617 in words is "two hundred twenty-eight million, fifty-three thousand, six hundred seventeen".

Divisors: 1 11 173 1903 119839 1318229 20732147 228053617