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286128076 = 22135502463
BaseRepresentation
bin10001000011011…
…111011111001100
3201221101210221011
4101003133133030
51041222044301
644220415004
710043022433
oct2103373714
9657353834
10286128076
1113756a293
127b9a7464
1347381a70
142a00211a
151a1bda51
hex110df7cc

286128076 has 12 divisors (see below), whose sum is σ = 539241472. Its totient is φ = 132059088.

The previous prime is 286128061. The next prime is 286128077. The reversal of 286128076 is 670821682.

It is not an unprimeable number, because it can be changed into a prime (286128077) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2751180 + ... + 2751283.

Almost surely, 2286128076 is an apocalyptic number.

286128076 is a gapful number since it is divisible by the number (26) formed by its first and last digit.

It is an amenable number.

286128076 is a deficient number, since it is larger than the sum of its proper divisors (253113396).

286128076 is a wasteful number, since it uses less digits than its factorization.

286128076 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5502480 (or 5502478 counting only the distinct ones).

The product of its (nonzero) digits is 64512, while the sum is 40.

The square root of 286128076 is about 16915.3207477718. The cubic root of 286128076 is about 658.9515615938.

The spelling of 286128076 in words is "two hundred eighty-six million, one hundred twenty-eight thousand, seventy-six".

Divisors: 1 2 4 13 26 52 5502463 11004926 22009852 71532019 143064038 286128076