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75483247 = 717634313
BaseRepresentation
bin1000111111111…
…00100001101111
312021000221112211
410133330201233
5123310430442
611253511251
71604411530
oct437744157
9167027484
1075483247
1139676754
1221342527
131283b558
14a04c687
156960617
hex47fc86f

75483247 has 8 divisors (see below), whose sum is σ = 91341216. Its totient is φ = 60893952.

The previous prime is 75483229. The next prime is 75483253. The reversal of 75483247 is 74238457.

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

It is not a de Polignac number, because 75483247 - 27 = 75483119 is a prime.

It is a super-3 number, since 3×754832473 (a number of 25 digits) contains 333 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (75483227) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 317038 + ... + 317275.

It is an arithmetic number, because the mean of its divisors is an integer number (11417652).

Almost surely, 275483247 is an apocalyptic number.

75483247 is a deficient number, since it is larger than the sum of its proper divisors (15857969).

75483247 is a wasteful number, since it uses less digits than its factorization.

75483247 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 634337.

The product of its digits is 188160, while the sum is 40.

The square root of 75483247 is about 8688.1095181863. The cubic root of 75483247 is about 422.6201415976.

The spelling of 75483247 in words is "seventy-five million, four hundred eighty-three thousand, two hundred forty-seven".

Divisors: 1 7 17 119 634313 4440191 10783321 75483247