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75084768 = 253211137173
BaseRepresentation
bin1000111100110…
…11001111100000
312020021200221100
410132123033200
5123210203033
611241154400
71601132013
oct436331740
9166250840
1075084768
1139424330
122118ba00
131272c075
149d8737a
1568d2513
hex479b3e0

75084768 has 144 divisors (see below), whose sum is σ = 235989936. Its totient is φ = 22456320.

The previous prime is 75084743. The next prime is 75084781. The reversal of 75084768 is 86748057.

It is a tau number, because it is divible by the number of its divisors (144).

It is a super-2 number, since 2×750847682 = 11275444771227648, which contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 433930 + ... + 434102.

It is an arithmetic number, because the mean of its divisors is an integer number (1638819).

Almost surely, 275084768 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 75084768, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (117994968).

75084768 is an abundant number, since it is smaller than the sum of its proper divisors (160905168).

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

75084768 is a wasteful number, since it uses less digits than its factorization.

75084768 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 337 (or 326 counting only the distinct ones).

The product of its (nonzero) digits is 376320, while the sum is 45.

The square root of 75084768 is about 8665.1467385152. The cubic root of 75084768 is about 421.8751530534.

The spelling of 75084768 in words is "seventy-five million, eighty-four thousand, seven hundred sixty-eight".

Divisors: 1 2 3 4 6 8 9 11 12 16 18 22 24 32 33 36 44 48 66 72 88 96 99 132 137 144 173 176 198 264 274 288 346 352 396 411 519 528 548 692 792 822 1038 1056 1096 1233 1384 1507 1557 1584 1644 1903 2076 2192 2466 2768 3014 3114 3168 3288 3806 4152 4384 4521 4932 5536 5709 6028 6228 6576 7612 8304 9042 9864 11418 12056 12456 13152 13563 15224 16608 17127 18084 19728 22836 23701 24112 24912 27126 30448 34254 36168 39456 45672 47402 48224 49824 54252 60896 68508 71103 72336 91344 94804 108504 137016 142206 144672 182688 189608 213309 217008 260711 274032 284412 379216 426618 434016 521422 548064 568824 758432 782133 853236 1042844 1137648 1564266 1706472 2085688 2275296 2346399 3128532 3412944 4171376 4692798 6257064 6825888 8342752 9385596 12514128 18771192 25028256 37542384 75084768