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8002228 = 2213153889
BaseRepresentation
bin11110100001101010110100
3120001112222211
4132201222310
54022032403
6443303204
7125006053
oct36415264
916045884
108002228
114576213
12281ab04
131872460
1410c439a
15a8106d
hex7a1ab4

8002228 has 12 divisors (see below), whose sum is σ = 15081220. Its totient is φ = 3693312.

The previous prime is 8002219. The next prime is 8002243. The reversal of 8002228 is 8222008.

It can be written as a sum of positive squares in 2 ways, for example, as 5253264 + 2748964 = 2292^2 + 1658^2 .

It is a junction number, because it is equal to n+sod(n) for n = 8002199 and 8002208.

It is a congruent number.

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, 76893 + ... + 76996.

Almost surely, 28002228 is an apocalyptic number.

It is an amenable number.

8002228 is a deficient number, since it is larger than the sum of its proper divisors (7078992).

8002228 is a wasteful number, since it uses less digits than its factorization.

8002228 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 153906 (or 153904 counting only the distinct ones).

The product of its (nonzero) digits is 512, while the sum is 22.

The square root of 8002228 is about 2828.8209558047. The cubic root of 8002228 is about 200.0185649433.

The spelling of 8002228 in words is "eight million, two thousand, two hundred twenty-eight".

Divisors: 1 2 4 13 26 52 153889 307778 615556 2000557 4001114 8002228