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75416320 = 285719443
BaseRepresentation
bin1000111111011…
…00001100000000
312020220112202001
410133230030000
5123301310240
611252233344
71604012440
oct437541400
9166815661
1075416320
1139630441
122130b854
1312816c55
14a032120
15694a89a
hex47ec300

75416320 has 144 divisors (see below), whose sum is σ = 217808640. Its totient is φ = 24440832.

The previous prime is 75416317. The next prime is 75416329. The reversal of 75416320 is 2361457.

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

It is not an unprimeable number, because it can be changed into a prime (75416329) 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 15 ways as a sum of consecutive naturals, for example, 170019 + ... + 170461.

It is an arithmetic number, because the mean of its divisors is an integer number (1512560).

Almost surely, 275416320 is an apocalyptic number.

75416320 is a gapful number since it is divisible by the number (70) 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 75416320, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (108904320).

75416320 is an abundant number, since it is smaller than the sum of its proper divisors (142392320).

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

75416320 is a wasteful number, since it uses less digits than its factorization.

75416320 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 490 (or 476 counting only the distinct ones).

The product of its (nonzero) digits is 5040, while the sum is 28.

The square root of 75416320 is about 8684.2570206092. The cubic root of 75416320 is about 422.4951996934.

Adding to 75416320 its reverse (2361457), we get a palindrome (77777777).

It can be divided in two parts, 7541 and 6320, that added together give a triangular number (13861 = T166).

The spelling of 75416320 in words is "seventy-five million, four hundred sixteen thousand, three hundred twenty".

Divisors: 1 2 4 5 7 8 10 14 16 19 20 28 32 35 38 40 56 64 70 76 80 95 112 128 133 140 152 160 190 224 256 266 280 304 320 380 443 448 532 560 608 640 665 760 886 896 1064 1120 1216 1280 1330 1520 1772 1792 2128 2215 2240 2432 2660 3040 3101 3544 4256 4430 4480 4864 5320 6080 6202 7088 8417 8512 8860 8960 10640 12160 12404 14176 15505 16834 17024 17720 21280 24320 24808 28352 31010 33668 34048 35440 42085 42560 49616 56704 58919 62020 67336 70880 84170 85120 99232 113408 117838 124040 134672 141760 168340 170240 198464 235676 248080 269344 283520 294595 336680 396928 471352 496160 538688 567040 589190 673360 793856 942704 992320 1077376 1178380 1346720 1885408 1984640 2154752 2356760 2693440 3770816 3969280 4713520 5386880 7541632 9427040 10773760 15083264 18854080 37708160 75416320