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75085893 = 3310912549
BaseRepresentation
bin1000111100110…
…11100001000101
312020021202111000
410132123201011
5123210222033
611241203513
71601135211
oct436334105
9166252430
1075085893
1139425163
1221190599
131272c72c
149d87941
1568d2a13
hex479b845

75085893 has 16 divisors (see below), whose sum is σ = 111384000. Its totient is φ = 49991760.

The previous prime is 75085877. The next prime is 75085903. The reversal of 75085893 is 39858057.

75085893 is a `hidden beast` number, since 7 + 508 + 58 + 93 = 666.

It is not a de Polignac number, because 75085893 - 24 = 75085877 is a prime.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (75085793) by changing a digit.

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, 28183 + ... + 30731.

It is an arithmetic number, because the mean of its divisors is an integer number (6961500).

Almost surely, 275085893 is an apocalyptic number.

It is an amenable number.

75085893 is a deficient number, since it is larger than the sum of its proper divisors (36298107).

75085893 is a wasteful number, since it uses less digits than its factorization.

75085893 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3649 (or 3643 counting only the distinct ones).

The product of its (nonzero) digits is 302400, while the sum is 45.

The square root of 75085893 is about 8665.2116535028. The cubic root of 75085893 is about 421.8772600373.

The spelling of 75085893 in words is "seventy-five million, eighty-five thousand, eight hundred ninety-three".

Divisors: 1 3 9 27 1091 2549 3273 7647 9819 22941 29457 68823 2780959 8342877 25028631 75085893