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320044434 = 23311720669
BaseRepresentation
bin10011000100110…
…111110110010010
3211022012221102120
4103010313312102
51123412410214
651431355110
710634222103
oct2304676622
9738187376
10320044434
11154725136
128b222a96
13513c8508
14307103aa
151d16cea9
hex13137d92

320044434 has 16 divisors (see below), whose sum is σ = 660737280. Its totient is φ = 103240080.

The previous prime is 320044429. The next prime is 320044481. The reversal of 320044434 is 434440023.

It is a happy number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 860149 + ... + 860520.

It is an arithmetic number, because the mean of its divisors is an integer number (41296080).

Almost surely, 2320044434 is an apocalyptic number.

320044434 is an abundant number, since it is smaller than the sum of its proper divisors (340692846).

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

320044434 is a wasteful number, since it uses less digits than its factorization.

320044434 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1720705.

The product of its (nonzero) digits is 4608, while the sum is 24.

The square root of 320044434 is about 17889.7857449440. The cubic root of 320044434 is about 684.0220359851.

Adding to 320044434 its reverse (434440023), we get a palindrome (754484457).

The spelling of 320044434 in words is "three hundred twenty million, forty-four thousand, four hundred thirty-four".

Divisors: 1 2 3 6 31 62 93 186 1720669 3441338 5162007 10324014 53340739 106681478 160022217 320044434