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319141440 = 26325110813
BaseRepresentation
bin10011000001011…
…011011001000000
3211020112001202100
4103001123121000
51123200011230
651400150400
710623441342
oct2301333100
9736461670
10319141440
11154168762
128aa68400
13511704b7
1430557292
151d040660
hex1305b640

319141440 has 84 divisors (see below), whose sum is σ = 1097723484. Its totient is φ = 85103616.

The previous prime is 319141439. The next prime is 319141441. The reversal of 319141440 is 44141913.

It is an interprime number because it is at equal distance from previous prime (319141439) and next prime (319141441).

It can be written as a sum of positive squares in 2 ways, for example, as 105513984 + 213627456 = 10272^2 + 14616^2 .

It is not an unprimeable number, because it can be changed into a prime (319141441) 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 11 ways as a sum of consecutive naturals, for example, 52527 + ... + 58286.

Almost surely, 2319141440 is an apocalyptic number.

319141440 is a gapful number since it is divisible by the number (30) formed by its first and last digit.

It is an amenable number.

319141440 is an abundant number, since it is smaller than the sum of its proper divisors (778582044).

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

319141440 is a wasteful number, since it uses less digits than its factorization.

319141440 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 110836 (or 110823 counting only the distinct ones).

The product of its (nonzero) digits is 1728, while the sum is 27.

The square root of 319141440 is about 17864.5302205236. The cubic root of 319141440 is about 683.3781153810.

The spelling of 319141440 in words is "three hundred nineteen million, one hundred forty-one thousand, four hundred forty".

Divisors: 1 2 3 4 5 6 8 9 10 12 15 16 18 20 24 30 32 36 40 45 48 60 64 72 80 90 96 120 144 160 180 192 240 288 320 360 480 576 720 960 1440 2880 110813 221626 332439 443252 554065 664878 886504 997317 1108130 1329756 1662195 1773008 1994634 2216260 2659512 3324390 3546016 3989268 4432520 4986585 5319024 6648780 7092032 7978536 8865040 9973170 10638048 13297560 15957072 17730080 19946340 21276096 26595120 31914144 35460160 39892680 53190240 63828288 79785360 106380480 159570720 319141440