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319330530 = 232519186743
BaseRepresentation
bin10011000010001…
…001100011100010
3211020212200010200
4103002021203202
51123222034110
651404210030
710625156541
oct2302114342
9736780120
10319330530
11154287832
128ab39916
135120859c
14305a6158
151d07b6c0
hex130898e2

319330530 has 48 divisors (see below), whose sum is σ = 873961920. Its totient is φ = 80672544.

The previous prime is 319330481. The next prime is 319330541. The reversal of 319330530 is 35033913.

It is a junction number, because it is equal to n+sod(n) for n = 319330494 and 319330503.

It is an unprimeable number.

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 23 ways as a sum of consecutive naturals, for example, 91662 + ... + 95081.

It is an arithmetic number, because the mean of its divisors is an integer number (18207540).

Almost surely, 2319330530 is an apocalyptic number.

319330530 is a gapful number since it is divisible by the number (30) formed by its first and last digit.

319330530 is an abundant number, since it is smaller than the sum of its proper divisors (554631390).

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

319330530 is a wasteful number, since it uses less digits than its factorization.

319330530 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 186775 (or 186772 counting only the distinct ones).

The product of its (nonzero) digits is 3645, while the sum is 27.

The square root of 319330530 is about 17869.8217674380. The cubic root of 319330530 is about 683.5130549817.

The spelling of 319330530 in words is "three hundred nineteen million, three hundred thirty thousand, five hundred thirty".

Divisors: 1 2 3 5 6 9 10 15 18 19 30 38 45 57 90 95 114 171 190 285 342 570 855 1710 186743 373486 560229 933715 1120458 1680687 1867430 2801145 3361374 3548117 5602290 7096234 8403435 10644351 16806870 17740585 21288702 31933053 35481170 53221755 63866106 106443510 159665265 319330530