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338302720 = 2857172221
BaseRepresentation
bin10100001010100…
…001011100000000
3212120120120002101
4110022201130000
51143101141340
653323000144
711245345210
oct2412413400
9776516071
10338302720
11163a65928
1295369054
135511bc32
1432d04240
151ea77c9a
hex142a1700

338302720 has 144 divisors (see below), whose sum is σ = 981021888. Its totient is φ = 109117440.

The previous prime is 338302697. The next prime is 338302747. The reversal of 338302720 is 27203833.

338302720 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is a super-2 number, since 2×3383027202 = 228897460718796800, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (28).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 151210 + ... + 153430.

It is an arithmetic number, because the mean of its divisors is an integer number (6812652).

Almost surely, 2338302720 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 338302720, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (490510944).

338302720 is an abundant number, since it is smaller than the sum of its proper divisors (642719168).

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

338302720 is a wasteful number, since it uses less digits than its factorization.

338302720 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2266 (or 2252 counting only the distinct ones).

The product of its (nonzero) digits is 6048, while the sum is 28.

The square root of 338302720 is about 18393.0073669316. The cubic root of 338302720 is about 696.7898726209.

The spelling of 338302720 in words is "three hundred thirty-eight million, three hundred two thousand, seven hundred twenty".

Divisors: 1 2 4 5 7 8 10 14 16 17 20 28 32 34 35 40 56 64 68 70 80 85 112 119 128 136 140 160 170 224 238 256 272 280 320 340 448 476 544 560 595 640 680 896 952 1088 1120 1190 1280 1360 1792 1904 2176 2221 2240 2380 2720 3808 4352 4442 4480 4760 5440 7616 8884 8960 9520 10880 11105 15232 15547 17768 19040 21760 22210 30464 31094 35536 37757 38080 44420 62188 71072 75514 76160 77735 88840 124376 142144 151028 152320 155470 177680 188785 248752 264299 284288 302056 310940 355360 377570 497504 528598 568576 604112 621880 710720 755140 995008 1057196 1208224 1243760 1321495 1421440 1510280 1990016 2114392 2416448 2487520 2642990 2842880 3020560 3980032 4228784 4832896 4975040 5285980 6041120 8457568 9665792 9950080 10571960 12082240 16915136 19900160 21143920 24164480 33830272 42287840 48328960 67660544 84575680 169151360 338302720