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75161073 = 31312491543
BaseRepresentation
bin1000111101011…
…01110111110001
312020102120121110
410132231313301
5123220123243
611242543533
71601600331
oct436556761
9166376543
1075161073
1139476699
1221207ba9
1312757a10
149da70c1
1568e9e33
hex47addf1

75161073 has 16 divisors (see below), whose sum is σ = 108080000. Its totient is φ = 46185984.

The previous prime is 75161071. The next prime is 75161083. The reversal of 75161073 is 37016157.

It is not a de Polignac number, because 75161073 - 21 = 75161071 is a prime.

It is a super-2 number, since 2×751610732 = 11298373789022658, which contains 22 as substring.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 75161073.

It is not an unprimeable number, because it can be changed into a prime (75161071) 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 15 ways as a sum of consecutive naturals, for example, 47940 + ... + 49482.

It is an arithmetic number, because the mean of its divisors is an integer number (6755000).

Almost surely, 275161073 is an apocalyptic number.

It is an amenable number.

75161073 is a deficient number, since it is larger than the sum of its proper divisors (32918927).

75161073 is a wasteful number, since it uses less digits than its factorization.

75161073 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2808.

The product of its (nonzero) digits is 4410, while the sum is 30.

The square root of 75161073 is about 8669.5486041662. The cubic root of 75161073 is about 422.0180150736.

The spelling of 75161073 in words is "seventy-five million, one hundred sixty-one thousand, seventy-three".

Divisors: 1 3 13 39 1249 1543 3747 4629 16237 20059 48711 60177 1927207 5781621 25053691 75161073