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8480005 = 51696001
BaseRepresentation
bin100000010110…
…010100000101
3120221211101021
4200112110011
54132330010
6501431141
7132036022
oct40262405
916854337
108480005
114872176
122a0b4b1
1319aba71
1411aa549
15b278da
hex816505

8480005 has 4 divisors (see below), whose sum is σ = 10176012. Its totient is φ = 6784000.

The previous prime is 8479981. The next prime is 8480033. The reversal of 8480005 is 5000848.

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 3272481 + 5207524 = 1809^2 + 2282^2 .

It is not a de Polignac number, because 8480005 - 211 = 8477957 is a prime.

It is a Duffinian number.

It is a congruent 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, 847996 + ... + 848005.

It is an arithmetic number, because the mean of its divisors is an integer number (2544003).

Almost surely, 28480005 is an apocalyptic number.

It is an amenable number.

8480005 is a deficient number, since it is larger than the sum of its proper divisors (1696007).

8480005 is a wasteful number, since it uses less digits than its factorization.

8480005 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1696006.

The product of its (nonzero) digits is 1280, while the sum is 25.

The square root of 8480005 is about 2912.0448142156. The cubic root of 8480005 is about 203.9226045636.

It can be divided in two parts, 84 and 80005, that added together give a square (80089 = 2832).

The spelling of 8480005 in words is "eight million, four hundred eighty thousand, five".

Divisors: 1 5 1696001 8480005