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75056217 = 3149167911
BaseRepresentation
bin1000111100101…
…00010001011001
312020020020202220
410132110101121
5123203244332
611240414253
71600652535
oct436242131
9166206686
1075056217
1139404935
1221177389
131271c082
149d7abc5
1568c8d2c
hex4794459

75056217 has 8 divisors (see below), whose sum is σ = 100747200. Its totient is φ = 49701360.

The previous prime is 75056167. The next prime is 75056243. The reversal of 75056217 is 71265057.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 75056217 - 218 = 74794073 is a prime.

It is not an unprimeable number, because it can be changed into a prime (75056417) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 83509 + ... + 84402.

It is an arithmetic number, because the mean of its divisors is an integer number (12593400).

Almost surely, 275056217 is an apocalyptic number.

It is an amenable number.

75056217 is a deficient number, since it is larger than the sum of its proper divisors (25690983).

75056217 is a wasteful number, since it uses less digits than its factorization.

75056217 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 168063.

The product of its (nonzero) digits is 14700, while the sum is 33.

The square root of 75056217 is about 8663.4991198707. The cubic root of 75056217 is about 421.8216735669.

The spelling of 75056217 in words is "seventy-five million, fifty-six thousand, two hundred seventeen".

Divisors: 1 3 149 447 167911 503733 25018739 75056217