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75048768 = 263431467
BaseRepresentation
bin1000111100100…
…10011101000000
312020012212120000
410132102131000
5123203030033
611240320000
71600622034
oct436223500
9166185500
1075048768
11393aa283
1221173000
1312718872
149d781c4
1568c6a13
hex4792740

75048768 has 140 divisors (see below), whose sum is σ = 230136192. Its totient is φ = 24157440.

The previous prime is 75048763. The next prime is 75048769. The reversal of 75048768 is 86784057.

75048768 is a `hidden beast` number, since 7 + 504 + 87 + 68 = 666.

It is a Smith number, since the sum of its digits (45) coincides with the sum of the digits of its prime factors.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (75048763) 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 19 ways as a sum of consecutive naturals, for example, 160471 + ... + 160937.

Almost surely, 275048768 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 75048768, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (115068096).

75048768 is an abundant number, since it is smaller than the sum of its proper divisors (155087424).

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

75048768 is a wasteful number, since it uses less digits than its factorization.

75048768 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 522 (or 503 counting only the distinct ones).

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

The square root of 75048768 is about 8663.0692020784. The cubic root of 75048768 is about 421.8077184555.

The spelling of 75048768 in words is "seventy-five million, forty-eight thousand, seven hundred sixty-eight".

Divisors: 1 2 3 4 6 8 9 12 16 18 24 27 31 32 36 48 54 62 64 72 81 93 96 108 124 144 162 186 192 216 248 279 288 324 372 432 467 496 558 576 648 744 837 864 934 992 1116 1296 1401 1488 1674 1728 1868 1984 2232 2511 2592 2802 2976 3348 3736 4203 4464 5022 5184 5604 5952 6696 7472 8406 8928 10044 11208 12609 13392 14477 14944 16812 17856 20088 22416 25218 26784 28954 29888 33624 37827 40176 43431 44832 50436 53568 57908 67248 75654 80352 86862 89664 100872 115816 130293 134496 151308 160704 173724 201744 231632 260586 268992 302616 347448 390879 403488 463264 521172 605232 694896 781758 806976 926528 1042344 1172637 1210464 1389792 1563516 2084688 2345274 2420928 2779584 3127032 4169376 4690548 6254064 8338752 9381096 12508128 18762192 25016256 37524384 75048768