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4278248 = 2313311327
BaseRepresentation
bin10000010100011111101000
322001100122122
4100110133220
52043400443
6231410412
751236012
oct20243750
98040578
104278248
112462347
121523a08
13b6a410
147d51b2
15597968
hex4147e8

4278248 has 32 divisors (see below), whose sum is σ = 8924160. Its totient is φ = 1909440.

The previous prime is 4278233. The next prime is 4278257. The reversal of 4278248 is 8428724.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2561 + ... + 3887.

It is an arithmetic number, because the mean of its divisors is an integer number (278880).

Almost surely, 24278248 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 4278248, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (4462080).

4278248 is an abundant number, since it is smaller than the sum of its proper divisors (4645912).

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

4278248 is a wasteful number, since it uses less digits than its factorization.

4278248 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1377 (or 1373 counting only the distinct ones).

The product of its digits is 28672, while the sum is 35.

The square root of 4278248 is about 2068.3926126343. The cubic root of 4278248 is about 162.3386706551.

The spelling of 4278248 in words is "four million, two hundred seventy-eight thousand, two hundred forty-eight".

Divisors: 1 2 4 8 13 26 31 52 62 104 124 248 403 806 1327 1612 2654 3224 5308 10616 17251 34502 41137 69004 82274 138008 164548 329096 534781 1069562 2139124 4278248