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319090304 = 27131131697
BaseRepresentation
bin10011000001001…
…110111010000000
3211020102110121102
4103001032322000
51123141342204
651355113532
710623136301
oct2301167200
9736373542
10319090304
111541332a5
128aa428a8
1351153140
14305427a8
151d03041e
hex1304ee80

319090304 has 64 divisors (see below), whose sum is σ = 691052040. Its totient is φ = 145883136.

The previous prime is 319090301. The next prime is 319090319. The reversal of 319090304 is 403090913.

It can be written as a sum of positive squares in 4 ways, for example, as 211760704 + 107329600 = 14552^2 + 10360^2 .

It is a tau number, because it is divible by the number of its divisors (64).

It is not an unprimeable number, because it can be changed into a prime (319090301) by changing a digit.

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 7 ways as a sum of consecutive naturals, for example, 187184 + ... + 188880.

Almost surely, 2319090304 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 319090304, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (345526020).

319090304 is an abundant number, since it is smaller than the sum of its proper divisors (371961736).

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

319090304 is a wasteful number, since it uses less digits than its factorization.

319090304 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1837 (or 1825 counting only the distinct ones).

The product of its (nonzero) digits is 2916, while the sum is 29.

The square root of 319090304 is about 17863.0989472712. The cubic root of 319090304 is about 683.3416142297.

The spelling of 319090304 in words is "three hundred nineteen million, ninety thousand, three hundred four".

Divisors: 1 2 4 8 13 16 26 32 52 64 104 113 128 208 226 416 452 832 904 1469 1664 1697 1808 2938 3394 3616 5876 6788 7232 11752 13576 14464 22061 23504 27152 44122 47008 54304 88244 94016 108608 176488 188032 191761 217216 352976 383522 705952 767044 1411904 1534088 2492893 2823808 3068176 4985786 6136352 9971572 12272704 19943144 24545408 39886288 79772576 159545152 319090304