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228754941 = 31723261139
BaseRepresentation
bin11011010001010…
…00010111111101
3120221102221210020
431220220113331
5432030124231
634411002353
75445246012
oct1550502775
9527387706
10228754941
11108142a78
12647393b9
133851466c
1422549709
1515139396
hexda285fd

228754941 has 48 divisors (see below), whose sum is σ = 345602880. Its totient is φ = 134069760.

The previous prime is 228754909. The next prime is 228754957. The reversal of 228754941 is 149457822.

It is not a de Polignac number, because 228754941 - 25 = 228754909 is a prime.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 228754893 and 228754902.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (228754901) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 1645650 + ... + 1645788.

It is an arithmetic number, because the mean of its divisors is an integer number (7200060).

Almost surely, 2228754941 is an apocalyptic number.

It is an amenable number.

228754941 is a deficient number, since it is larger than the sum of its proper divisors (116847939).

228754941 is a wasteful number, since it uses less digits than its factorization.

228754941 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 266 (or 243 counting only the distinct ones).

The product of its digits is 161280, while the sum is 42.

The square root of 228754941 is about 15124.6468057935. The cubic root of 228754941 is about 611.5850036952.

The spelling of 228754941 in words is "two hundred twenty-eight million, seven hundred fifty-four thousand, nine hundred forty-one".

Divisors: 1 3 17 23 51 61 69 139 183 391 417 529 1037 1173 1403 1587 2363 3111 3197 4209 7089 8479 8993 9591 23851 25437 26979 32269 54349 71553 73531 96807 144143 163047 195017 220593 432429 548573 585051 1250027 1645719 3315289 3750081 4485391 9945867 13456173 76251647 228754941