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8000065 = 52117583
BaseRepresentation
bin11110100001001001000001
3120001110000201
4132201021001
54022000230
6443245201
7124666543
oct36411101
916043021
108000065
114574627
122819801
131871488
1410c3693
15a805ca
hex7a1241

8000065 has 8 divisors (see below), whose sum is σ = 9646848. Its totient is φ = 6368880.

The previous prime is 8000063. The next prime is 8000071. The reversal of 8000065 is 5600008.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 8000065 - 21 = 8000063 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (8000063) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2737 + ... + 4846.

It is an arithmetic number, because the mean of its divisors is an integer number (1205856).

Almost surely, 28000065 is an apocalyptic number.

It is an amenable number.

8000065 is a deficient number, since it is larger than the sum of its proper divisors (1646783).

8000065 is a wasteful number, since it uses less digits than its factorization.

8000065 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7799.

The product of its (nonzero) digits is 240, while the sum is 19.

The square root of 8000065 is about 2828.4386152080. The cubic root of 8000065 is about 200.0005416652. Note that the first 3 decimals are identical.

The spelling of 8000065 in words is "eight million, sixty-five", and thus it is an aban number and an uban number.

Divisors: 1 5 211 1055 7583 37915 1600013 8000065