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8028260 = 2251937571
BaseRepresentation
bin11110101000000001100100
3120002212200222
4132220001210
54023401020
6444023512
7125145002
oct36500144
916085628
108028260
114593829
122831b98
131881266
1410cda72
15a88b25
hex7a8064

8028260 has 48 divisors (see below), whose sum is σ = 18258240. Its totient is φ = 2954880.

The previous prime is 8028259. The next prime is 8028263. The reversal of 8028260 is 628208.

It is not an unprimeable number, because it can be changed into a prime (8028263) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 13775 + ... + 14345.

It is an arithmetic number, because the mean of its divisors is an integer number (380380).

Almost surely, 28028260 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 8028260, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (9129120).

8028260 is an abundant number, since it is smaller than the sum of its proper divisors (10229980).

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

8028260 is a wasteful number, since it uses less digits than its factorization.

8028260 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 636 (or 634 counting only the distinct ones).

The product of its (nonzero) digits is 1536, while the sum is 26.

The square root of 8028260 is about 2833.4184300946. The cubic root of 8028260 is about 200.2352232417.

The spelling of 8028260 in words is "eight million, twenty-eight thousand, two hundred sixty".

Divisors: 1 2 4 5 10 19 20 37 38 74 76 95 148 185 190 370 380 571 703 740 1142 1406 2284 2812 2855 3515 5710 7030 10849 11420 14060 21127 21698 42254 43396 54245 84508 105635 108490 211270 216980 401413 422540 802826 1605652 2007065 4014130 8028260