Search a number
-
+
319104660 = 223572311349
BaseRepresentation
bin10011000001010…
…010011010010100
3211020110012022010
4103001102122110
51123142322120
651355304220
710623226200
oct2301223224
9736405263
10319104660
11154143066
128aa4b070
1351159834
1430547b00
151d0347e0
hex13052694

319104660 has 144 divisors (see below), whose sum is σ = 1045699200. Its totient is φ = 72495360.

The previous prime is 319104649. The next prime is 319104697. The reversal of 319104660 is 66401913.

It is a Harshad number since it is a multiple of its sum of digits (30).

It is a congruent number.

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 47 ways as a sum of consecutive naturals, for example, 914166 + ... + 914514.

It is an arithmetic number, because the mean of its divisors is an integer number (7261800).

Almost surely, 2319104660 is an apocalyptic number.

319104660 is a gapful number since it is divisible by the number (30) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 319104660, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (522849600).

319104660 is an abundant number, since it is smaller than the sum of its proper divisors (726594540).

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

319104660 is a wasteful number, since it uses less digits than its factorization.

319104660 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 686 (or 677 counting only the distinct ones).

The product of its (nonzero) digits is 3888, while the sum is 30.

The square root of 319104660 is about 17863.5007767235. The cubic root of 319104660 is about 683.3518620133.

The spelling of 319104660 in words is "three hundred nineteen million, one hundred four thousand, six hundred sixty".

Divisors: 1 2 3 4 5 6 7 10 12 14 15 20 21 28 30 35 42 49 60 70 84 98 105 140 147 196 210 245 294 311 349 420 490 588 622 698 735 933 980 1047 1244 1396 1470 1555 1745 1866 2094 2177 2443 2940 3110 3490 3732 4188 4354 4665 4886 5235 6220 6531 6980 7329 8708 9330 9772 10470 10885 12215 13062 14658 15239 17101 18660 20940 21770 24430 26124 29316 30478 32655 34202 36645 43540 45717 48860 51303 60956 65310 68404 73290 76195 85505 91434 102606 108539 130620 146580 152390 171010 182868 205212 217078 228585 256515 304780 325617 342020 434156 457170 513030 542695 651234 759773 914340 1026060 1085390 1302468 1519546 1628085 2170780 2279319 3039092 3256170 3798865 4558638 5318411 6512340 7597730 9117276 10636822 11396595 15195460 15955233 21273644 22793190 26592055 31910466 45586380 53184110 63820932 79776165 106368220 159552330 319104660