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75027317 = 157477881
BaseRepresentation
bin1000111100011…
…01001101110101
312020011210010112
410132031031311
5123201333232
611240032405
71600502351
oct436151565
9166153115
1075027317
1139395152
1221162705
131270bb81
149d70461
1568c04b2
hex478d375

75027317 has 4 divisors (see below), whose sum is σ = 75505356. Its totient is φ = 74549280.

The previous prime is 75027301. The next prime is 75027319. The reversal of 75027317 is 71372057.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 71372057 = 208134297.

It can be written as a sum of positive squares in 2 ways, for example, as 55965361 + 19061956 = 7481^2 + 4366^2 .

It is a cyclic number.

It is not a de Polignac number, because 75027317 - 24 = 75027301 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (75027319) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 238784 + ... + 239097.

It is an arithmetic number, because the mean of its divisors is an integer number (18876339).

Almost surely, 275027317 is an apocalyptic number.

It is an amenable number.

75027317 is a deficient number, since it is larger than the sum of its proper divisors (478039).

75027317 is a wasteful number, since it uses less digits than its factorization.

75027317 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 478038.

The product of its (nonzero) digits is 10290, while the sum is 32.

The square root of 75027317 is about 8661.8310419911. The cubic root of 75027317 is about 421.7675265474.

The spelling of 75027317 in words is "seventy-five million, twenty-seven thousand, three hundred seventeen".

Divisors: 1 157 477881 75027317