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75082071 = 325027357
BaseRepresentation
bin1000111100110…
…10100101010111
312020021120020110
410132122211113
5123210111241
611241134103
71601121111
oct436324527
9166246213
1075082071
11394222a9
122118a333
131272aa7c
149d863b1
1568d1816
hex479a957

75082071 has 4 divisors (see below), whose sum is σ = 100109432. Its totient is φ = 50054712.

The previous prime is 75082061. The next prime is 75082099. The reversal of 75082071 is 17028057.

It is a happy number.

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

It is not a de Polignac number, because 75082071 - 27 = 75081943 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 (75082061) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 12513676 + ... + 12513681.

It is an arithmetic number, because the mean of its divisors is an integer number (25027358).

Almost surely, 275082071 is an apocalyptic number.

75082071 is a deficient number, since it is larger than the sum of its proper divisors (25027361).

75082071 is a wasteful number, since it uses less digits than its factorization.

75082071 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 25027360.

The product of its (nonzero) digits is 3920, while the sum is 30.

The square root of 75082071 is about 8664.9911136712. The cubic root of 75082071 is about 421.8701018252.

The spelling of 75082071 in words is "seventy-five million, eighty-two thousand, seventy-one".

Divisors: 1 3 25027357 75082071