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2008442228 = 221358696581
BaseRepresentation
bin111011110110110…
…0110010101110100
312011222020102210012
41313231212111310
513103130122403
6531143515352
7100525322462
oct16755462564
95158212705
102008442228
11940793411
12480758b58
13260141b70
14150a55832
15bb4cded8
hex77b66574

2008442228 has 24 divisors (see below), whose sum is σ = 3786361320. Its totient is φ = 926674560.

The previous prime is 2008442221. The next prime is 2008442243. The reversal of 2008442228 is 8222448002.

It is a happy number.

It can be written as a sum of positive squares in 4 ways, for example, as 60808804 + 1947633424 = 7798^2 + 44132^2 .

It is a junction number, because it is equal to n+sod(n) for n = 2008442194 and 2008442203.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2008442221) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 301898 + ... + 308478.

It is an arithmetic number, because the mean of its divisors is an integer number (157765055).

Almost surely, 22008442228 is an apocalyptic number.

It is an amenable number.

2008442228 is a deficient number, since it is larger than the sum of its proper divisors (1777919092).

2008442228 is a wasteful number, since it uses less digits than its factorization.

2008442228 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12467 (or 12465 counting only the distinct ones).

The product of its (nonzero) digits is 16384, while the sum is 32.

The square root of 2008442228 is about 44815.6471335626. The cubic root of 2008442228 is about 1261.6913181859.

The spelling of 2008442228 in words is "two billion, eight million, four hundred forty-two thousand, two hundred twenty-eight".

Divisors: 1 2 4 13 26 52 5869 6581 11738 13162 23476 26324 76297 85553 152594 171106 305188 342212 38623889 77247778 154495556 502110557 1004221114 2008442228