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318420480 = 293575923
BaseRepresentation
bin10010111110101…
…011011000000000
3211012011102210010
4102332223120000
51123003423410
651332504520
710614346410
oct2276533000
9735142703
10318420480
11153816024
128a77b140
1350c7a2b1
143040a640
151ce4bc20
hex12fab600

318420480 has 160 divisors (see below), whose sum is σ = 1163568384. Its totient is φ = 72769536.

The previous prime is 318420467. The next prime is 318420491. The reversal of 318420480 is 84024813.

It is a tau number, because it is divible by the number of its divisors (160).

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 (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 50799 + ... + 56721.

Almost surely, 2318420480 is an apocalyptic number.

318420480 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 318420480, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (581784192).

318420480 is an abundant number, since it is smaller than the sum of its proper divisors (845147904).

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

318420480 is an equidigital number, since it uses as much as digits as its factorization.

318420480 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5956 (or 5940 counting only the distinct ones).

The product of its (nonzero) digits is 6144, while the sum is 30.

The square root of 318420480 is about 17844.3402792034. The cubic root of 318420480 is about 682.8631297613.

The spelling of 318420480 in words is "three hundred eighteen million, four hundred twenty thousand, four hundred eighty".

Divisors: 1 2 3 4 5 6 7 8 10 12 14 15 16 20 21 24 28 30 32 35 40 42 48 56 60 64 70 80 84 96 105 112 120 128 140 160 168 192 210 224 240 256 280 320 336 384 420 448 480 512 560 640 672 768 840 896 960 1120 1280 1344 1536 1680 1792 1920 2240 2560 2688 3360 3584 3840 4480 5376 5923 6720 7680 8960 10752 11846 13440 17769 17920 23692 26880 29615 35538 41461 47384 53760 59230 71076 82922 88845 94768 118460 124383 142152 165844 177690 189536 207305 236920 248766 284304 331688 355380 379072 414610 473840 497532 568608 621915 663376 710760 758144 829220 947680 995064 1137216 1243830 1326752 1421520 1516288 1658440 1895360 1990128 2274432 2487660 2653504 2843040 3032576 3316880 3790720 3980256 4548864 4975320 5307008 5686080 6633760 7581440 7960512 9097728 9950640 10614016 11372160 13267520 15162880 15921024 19901280 21228032 22744320 26535040 31842048 39802560 45488640 53070080 63684096 79605120 106140160 159210240 318420480