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75453053 = 135804081
BaseRepresentation
bin1000111111101…
…01001001111101
312020222102010112
410133311021331
5123303444203
611253115405
71604224514
oct437651175
9166872115
1075453053
1139655aa5
1221328b65
131282a8a0
14a04167b
1569566d8
hex47f527d

75453053 has 4 divisors (see below), whose sum is σ = 81257148. Its totient is φ = 69648960.

The previous prime is 75453031. The next prime is 75453061. The reversal of 75453053 is 35035457.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 12694969 + 62758084 = 3563^2 + 7922^2 .

It is a cyclic number.

It is not a de Polignac number, because 75453053 - 26 = 75452989 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 (75453013) 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 3 ways as a sum of consecutive naturals, for example, 2902028 + ... + 2902053.

It is an arithmetic number, because the mean of its divisors is an integer number (20314287).

Almost surely, 275453053 is an apocalyptic number.

It is an amenable number.

75453053 is a deficient number, since it is larger than the sum of its proper divisors (5804095).

75453053 is a wasteful number, since it uses less digits than its factorization.

75453053 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5804094.

The product of its (nonzero) digits is 31500, while the sum is 32.

The square root of 75453053 is about 8686.3716821237. The cubic root of 75453053 is about 422.5637834215.

The spelling of 75453053 in words is "seventy-five million, four hundred fifty-three thousand, fifty-three".

Divisors: 1 13 5804081 75453053