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226606820 = 225111030031
BaseRepresentation
bin11011000000110…
…11111011100100
3120210101211010012
431200123323210
5431002404240
634252545352
75421061166
oct1540337344
9523354105
10226606820
11106a06070
1263a82258
1337c4199b
142214a936
1514d62b65
hexd81bee4

226606820 has 24 divisors (see below), whose sum is σ = 519136128. Its totient is φ = 82402400.

The previous prime is 226606817. The next prime is 226606829. The reversal of 226606820 is 28606622.

It is not an unprimeable number, because it can be changed into a prime (226606829) 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, 514796 + ... + 515235.

It is an arithmetic number, because the mean of its divisors is an integer number (21630672).

Almost surely, 2226606820 is an apocalyptic number.

226606820 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

226606820 is an abundant number, since it is smaller than the sum of its proper divisors (292529308).

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

226606820 is a wasteful number, since it uses less digits than its factorization.

226606820 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1030051 (or 1030049 counting only the distinct ones).

The product of its (nonzero) digits is 13824, while the sum is 32.

The square root of 226606820 is about 15053.4653817651. The cubic root of 226606820 is about 609.6646190079.

The spelling of 226606820 in words is "two hundred twenty-six million, six hundred six thousand, eight hundred twenty".

Divisors: 1 2 4 5 10 11 20 22 44 55 110 220 1030031 2060062 4120124 5150155 10300310 11330341 20600620 22660682 45321364 56651705 113303410 226606820