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8072065 = 51614413
BaseRepresentation
bin11110110010101110000001
3120012002210101
4132302232001
54031301230
6445002401
7125416501
oct36625601
916162711
108072065
114613731
122853401
131898191
141101a01
15a96aca
hex7b2b81

8072065 has 4 divisors (see below), whose sum is σ = 9686484. Its totient is φ = 6457648.

The previous prime is 8072041. The next prime is 8072087. The reversal of 8072065 is 5602708.

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 2982529 + 5089536 = 1727^2 + 2256^2 .

It is a cyclic number.

It is not a de Polignac number, because 8072065 - 27 = 8071937 is a prime.

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 807202 + ... + 807211.

It is an arithmetic number, because the mean of its divisors is an integer number (2421621).

Almost surely, 28072065 is an apocalyptic number.

It is an amenable number.

8072065 is a deficient number, since it is larger than the sum of its proper divisors (1614419).

8072065 is a wasteful number, since it uses less digits than its factorization.

8072065 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1614418.

The product of its (nonzero) digits is 3360, while the sum is 28.

The square root of 8072065 is about 2841.1379762342. The cubic root of 8072065 is about 200.5987473858.

The spelling of 8072065 in words is "eight million, seventy-two thousand, sixty-five".

Divisors: 1 5 1614413 8072065