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286328013 = 34316713291
BaseRepresentation
bin10001000100010…
…000010011001101
3201221202222012020
4101010100103031
51041244444023
644225000353
710044514356
oct2104202315
9657688166
10286328013
11137696524
127ba830b9
1347421a7a
142a054d2d
151a20cde3
hex111104cd

286328013 has 16 divisors (see below), whose sum is σ = 393017856. Its totient is φ = 185315760.

The previous prime is 286328011. The next prime is 286328023. The reversal of 286328013 is 310823682.

It is not a de Polignac number, because 286328013 - 21 = 286328011 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (286328011) 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, 14898 + ... + 28188.

It is an arithmetic number, because the mean of its divisors is an integer number (24563616).

Almost surely, 2286328013 is an apocalyptic number.

It is an amenable number.

286328013 is a deficient number, since it is larger than the sum of its proper divisors (106689843).

286328013 is a wasteful number, since it uses less digits than its factorization.

286328013 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 13504.

The product of its (nonzero) digits is 13824, while the sum is 33.

The square root of 286328013 is about 16921.2296538993. The cubic root of 286328013 is about 659.1050105025.

It can be divided in two parts, 2863 and 28013, that added together give a triangular number (30876 = T248).

The spelling of 286328013 in words is "two hundred eighty-six million, three hundred twenty-eight thousand, thirteen".

Divisors: 1 3 43 129 167 501 7181 13291 21543 39873 571513 1714539 2219597 6658791 95442671 286328013