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8805220 = 225440261
BaseRepresentation
bin100001100101…
…101101100100
3121120100111021
4201211231210
54223231340
6512420524
7134562124
oct41455544
917510437
108805220
114a74546
122b47744
131a93ab8
141252c84
15b8de4a
hex865b64

8805220 has 12 divisors (see below), whose sum is σ = 18491004. Its totient is φ = 3522080.

The previous prime is 8805217. The next prime is 8805253. The reversal of 8805220 is 225088.

It can be written as a sum of positive squares in 2 ways, for example, as 5798464 + 3006756 = 2408^2 + 1734^2 .

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 220111 + ... + 220150.

It is an arithmetic number, because the mean of its divisors is an integer number (1540917).

Almost surely, 28805220 is an apocalyptic number.

It is an amenable number.

8805220 is an abundant number, since it is smaller than the sum of its proper divisors (9685784).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

8805220 is a wasteful number, since it uses less digits than its factorization.

8805220 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 440270 (or 440268 counting only the distinct ones).

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

The square root of 8805220 is about 2967.3590952226. The cubic root of 8805220 is about 206.4968370087.

It can be divided in two parts, 8805 and 220, that added together give a square (9025 = 952).

The spelling of 8805220 in words is "eight million, eight hundred five thousand, two hundred twenty".

Divisors: 1 2 4 5 10 20 440261 880522 1761044 2201305 4402610 8805220