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8255980 = 225509811
BaseRepresentation
bin11111011111100111101100
3120112110002001
4133133213230
54103142410
6452542044
7130113625
oct37374754
916473061
108255980
114729927
122921924
131930ac5
14114ca4c
15ad133a
hex7df9ec

8255980 has 24 divisors (see below), whose sum is σ = 17393040. Its totient is φ = 3291840.

The previous prime is 8255977. The next prime is 8255983. The reversal of 8255980 is 895528.

It is a happy number.

It is an interprime number because it is at equal distance from previous prime (8255977) and next prime (8255983).

It is a super-2 number, since 2×82559802 = 136322411520800, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (8255983) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 9775 + ... + 10585.

It is an arithmetic number, because the mean of its divisors is an integer number (724710).

Almost surely, 28255980 is an apocalyptic number.

It is an amenable number.

8255980 is an abundant number, since it is smaller than the sum of its proper divisors (9137060).

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

8255980 is a wasteful number, since it uses less digits than its factorization.

8255980 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1329 (or 1327 counting only the distinct ones).

The product of its (nonzero) digits is 28800, while the sum is 37.

The square root of 8255980 is about 2873.3221190810. The cubic root of 8255980 is about 202.1108106849.

The spelling of 8255980 in words is "eight million, two hundred fifty-five thousand, nine hundred eighty".

Divisors: 1 2 4 5 10 20 509 811 1018 1622 2036 2545 3244 4055 5090 8110 10180 16220 412799 825598 1651196 2063995 4127990 8255980