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320230430 = 25132463311
BaseRepresentation
bin10011000101100…
…101010000011110
3211022120101120022
4103011211100132
51123434333210
651435352142
710635625262
oct2305452036
9738511508
10320230430
11154841953
128b2b2652
1351462080
143075c0a2
151d1a8155
hex1316541e

320230430 has 16 divisors (see below), whose sum is σ = 620754624. Its totient is φ = 118238880.

The previous prime is 320230429. The next prime is 320230433. The reversal of 320230430 is 34032023.

It is a junction number, because it is equal to n+sod(n) for n = 320230399 and 320230408.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (320230433) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1231526 + ... + 1231785.

It is an arithmetic number, because the mean of its divisors is an integer number (38797164).

Almost surely, 2320230430 is an apocalyptic number.

320230430 is a deficient number, since it is larger than the sum of its proper divisors (300524194).

320230430 is a wasteful number, since it uses less digits than its factorization.

320230430 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2463331.

The product of its (nonzero) digits is 432, while the sum is 17.

The square root of 320230430 is about 17894.9833752368. The cubic root of 320230430 is about 684.1545183439.

Adding to 320230430 its reverse (34032023), we get a palindrome (354262453).

The spelling of 320230430 in words is "three hundred twenty million, two hundred thirty thousand, four hundred thirty".

Divisors: 1 2 5 10 13 26 65 130 2463311 4926622 12316555 24633110 32023043 64046086 160115215 320230430