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228035272 = 2328504409
BaseRepresentation
bin11011001011110…
…00101011001000
3120220002101120211
431211320223020
5431334112042
634343330504
75436160603
oct1545705310
9526071524
10228035272
111077a1303
1264450a34
1338321c1a
14223dd33a
1515046017
hexd978ac8

228035272 has 8 divisors (see below), whose sum is σ = 427566150. Its totient is φ = 114017632.

The previous prime is 228035261. The next prime is 228035281. The reversal of 228035272 is 272530822.

228035272 is digitally balanced in base 2 and base 3, because in such bases it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in only one way, i.e., 189172516 + 38862756 = 13754^2 + 6234^2 .

It is a tau number, because it is divible by the number of its divisors (8).

It is a super-3 number, since 3×2280352723 (a number of 26 digits) contains 333 as substring. Note that it is a super-d number also for d = 2.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 14252197 + ... + 14252212.

Almost surely, 2228035272 is an apocalyptic number.

It is an amenable number.

228035272 is a deficient number, since it is larger than the sum of its proper divisors (199530878).

228035272 is a wasteful number, since it uses less digits than its factorization.

228035272 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 28504415 (or 28504411 counting only the distinct ones).

The product of its (nonzero) digits is 13440, while the sum is 31.

The square root of 228035272 is about 15100.8367980056. The cubic root of 228035272 is about 610.9429758302.

The spelling of 228035272 in words is "two hundred twenty-eight million, thirty-five thousand, two hundred seventy-two".

Divisors: 1 2 4 8 28504409 57008818 114017636 228035272