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320023423 = 4767101627
BaseRepresentation
bin10011000100110…
…010101101111111
3211022011212121101
4103010302231333
51123411222143
651431113531
710634103616
oct2304625577
9738155541
10320023423
11154710375
128b2128a7
13513bba95
143070687d
151d166b4d
hex13132b7f

320023423 has 8 divisors (see below), whose sum is σ = 331713792. Its totient is φ = 308536536.

The previous prime is 320023373. The next prime is 320023427. The reversal of 320023423 is 324320023.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 320023423 - 213 = 320015231 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 320023423.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (320023427) 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, 47665 + ... + 53962.

It is an arithmetic number, because the mean of its divisors is an integer number (41464224).

Almost surely, 2320023423 is an apocalyptic number.

320023423 is a deficient number, since it is larger than the sum of its proper divisors (11690369).

320023423 is a wasteful number, since it uses less digits than its factorization.

320023423 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 101741.

The product of its (nonzero) digits is 864, while the sum is 19.

The square root of 320023423 is about 17889.1985007714. The cubic root of 320023423 is about 684.0070669163.

Adding to 320023423 its reverse (324320023), we get a palindrome (644343446).

The spelling of 320023423 in words is "three hundred twenty million, twenty-three thousand, four hundred twenty-three".

Divisors: 1 47 67 3149 101627 4776469 6809009 320023423