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8042216 = 2371311047
BaseRepresentation
bin11110101011011011101000
3120010120211212
4132223123220
54024322331
6444212252
7125233460
oct36533350
916116755
108042216
1145a3266
12283a088
131887710
1410d4ba0
15a8cd2b
hex7ab6e8

8042216 has 32 divisors (see below), whose sum is σ = 18560640. Its totient is φ = 3181248.

The previous prime is 8042213. The next prime is 8042239. The reversal of 8042216 is 6122408.

It is a junction number, because it is equal to n+sod(n) for n = 8042191 and 8042200.

It is not an unprimeable number, because it can be changed into a prime (8042213) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 4796 + ... + 6251.

It is an arithmetic number, because the mean of its divisors is an integer number (580020).

Almost surely, 28042216 is an apocalyptic number.

It is an amenable number.

8042216 is an abundant number, since it is smaller than the sum of its proper divisors (10518424).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

8042216 is a wasteful number, since it uses less digits than its factorization.

8042216 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11073 (or 11069 counting only the distinct ones).

The product of its (nonzero) digits is 768, while the sum is 23.

The square root of 8042216 is about 2835.8801103009. The cubic root of 8042216 is about 200.3511829916.

The spelling of 8042216 in words is "eight million, forty-two thousand, two hundred sixteen".

Divisors: 1 2 4 7 8 13 14 26 28 52 56 91 104 182 364 728 11047 22094 44188 77329 88376 143611 154658 287222 309316 574444 618632 1005277 1148888 2010554 4021108 8042216