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228822028 = 2281170537
BaseRepresentation
bin11011010001110…
…00110000001100
3120221120100210221
431220320300030
5432034301103
634412241124
75445645421
oct1550706014
9527510727
10228822028
11108189416
12647701a4
1338539066
1422565d48
151514e1bd
hexda38c0c

228822028 has 12 divisors (see below), whose sum is σ = 400937992. Its totient is φ = 114268320.

The previous prime is 228822017. The next prime is 228822037. The reversal of 228822028 is 820228822.

It is a hoax number, since the sum of its digits (34) coincides with the sum of the digits of its distinct prime factors.

It is a junction number, because it is equal to n+sod(n) for n = 228821984 and 228822002.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 32025 + ... + 38512.

Almost surely, 2228822028 is an apocalyptic number.

It is an amenable number.

228822028 is a deficient number, since it is larger than the sum of its proper divisors (172115964).

228822028 is a wasteful number, since it uses less digits than its factorization.

228822028 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 71352 (or 71350 counting only the distinct ones).

The product of its (nonzero) digits is 16384, while the sum is 34.

The square root of 228822028 is about 15126.8644470690. The cubic root of 228822028 is about 611.6447843972.

The spelling of 228822028 in words is "two hundred twenty-eight million, eight hundred twenty-two thousand, twenty-eight".

Divisors: 1 2 4 811 1622 3244 70537 141074 282148 57205507 114411014 228822028