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320512014 = 23217806223
BaseRepresentation
bin10011000110101…
…010000000001110
3211100002200211100
4103012222000032
51124022341024
651445403530
710641210234
oct2306520016
9740080740
10320512014
11154a14469
128b4095a6
13515302a4
14307d2954
151d2117c9
hex131aa00e

320512014 has 12 divisors (see below), whose sum is σ = 694442736. Its totient is φ = 106837332.

The previous prime is 320511967. The next prime is 320512021. The reversal of 320512014 is 410215023.

It is a super-2 number, since 2×3205120142 = 205455902236672392, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (18), and also a Moran number because the ratio is a prime number: 17806223 = 320512014 / (3 + 2 + 0 + 5 + 1 + 2 + 0 + 1 + 4).

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 8903094 + ... + 8903129.

It is an arithmetic number, because the mean of its divisors is an integer number (57870228).

Almost surely, 2320512014 is an apocalyptic number.

320512014 is an abundant number, since it is smaller than the sum of its proper divisors (373930722).

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

320512014 is a wasteful number, since it uses less digits than its factorization.

320512014 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 17806231 (or 17806228 counting only the distinct ones).

The product of its (nonzero) digits is 240, while the sum is 18.

The square root of 320512014 is about 17902.8493262944. The cubic root of 320512014 is about 684.3549891190.

Adding to 320512014 its reverse (410215023), we get a palindrome (730727037).

The spelling of 320512014 in words is "three hundred twenty million, five hundred twelve thousand, fourteen".

Divisors: 1 2 3 6 9 18 17806223 35612446 53418669 106837338 160256007 320512014