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75180117 = 325060039
BaseRepresentation
bin1000111101100…
…10100001010101
312020110112201210
410132302201111
5123221230432
611243212033
71602010005
oct436624125
9166415653
1075180117
1139489a31
1221217019
131276359c
149db0005
1569008cc
hex47b2855

75180117 has 4 divisors (see below), whose sum is σ = 100240160. Its totient is φ = 50120076.

The previous prime is 75180107. The next prime is 75180139. The reversal of 75180117 is 71108157.

It is a happy number.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is not a de Polignac number, because 75180117 - 215 = 75147349 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 (75180107) 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 3 ways as a sum of consecutive naturals, for example, 12530017 + ... + 12530022.

It is an arithmetic number, because the mean of its divisors is an integer number (25060040).

Almost surely, 275180117 is an apocalyptic number.

It is an amenable number.

75180117 is a deficient number, since it is larger than the sum of its proper divisors (25060043).

75180117 is a wasteful number, since it uses less digits than its factorization.

75180117 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 25060042.

The product of its (nonzero) digits is 1960, while the sum is 30.

The square root of 75180117 is about 8670.6468616822. The cubic root of 75180117 is about 422.0536551200.

The spelling of 75180117 in words is "seventy-five million, one hundred eighty thousand, one hundred seventeen".

Divisors: 1 3 25060039 75180117