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320255412 = 223194313259
BaseRepresentation
bin10011000101101…
…011010110110100
3211022121122211120
4103011223112310
51123441133122
651440103540
710636061151
oct2305532664
9738548746
10320255412
111548596a4
128b304bb0
1351470559
1430767228
151d1b075c
hex1316b5b4

320255412 has 48 divisors (see below), whose sum is σ = 788659200. Its totient is φ = 100867680.

The previous prime is 320255371. The next prime is 320255437. The reversal of 320255412 is 214552023.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 96639 + ... + 99897.

It is an arithmetic number, because the mean of its divisors is an integer number (16430400).

Almost surely, 2320255412 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 320255412, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (394329600).

320255412 is an abundant number, since it is smaller than the sum of its proper divisors (468403788).

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

320255412 is a wasteful number, since it uses less digits than its factorization.

320255412 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3716 (or 3714 counting only the distinct ones).

The product of its (nonzero) digits is 2400, while the sum is 24.

The square root of 320255412 is about 17895.6813784779. The cubic root of 320255412 is about 684.1723087662.

The spelling of 320255412 in words is "three hundred twenty million, two hundred fifty-five thousand, four hundred twelve".

Divisors: 1 2 3 4 6 12 19 38 57 76 114 228 431 862 1293 1724 2586 3259 5172 6518 8189 9777 13036 16378 19554 24567 32756 39108 49134 61921 98268 123842 185763 247684 371526 743052 1404629 2809258 4213887 5618516 8427774 16855548 26687951 53375902 80063853 106751804 160127706 320255412