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226286809 = 7140922943
BaseRepresentation
bin11010111110011…
…01110011011001
3120202210120010221
431133031303121
5430412134214
634242040041
75415256210
oct1537156331
9522716127
10226286809
111068076a1
1263949021
1337b5c128
14220a6077
1514cece24
hexd7cdcd9

226286809 has 8 divisors (see below), whose sum is σ = 258808320. Its totient is φ = 193814016.

The previous prime is 226286807. The next prime is 226286821. The reversal of 226286809 is 908682622.

It is a happy number.

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

It is a cyclic number.

It is not a de Polignac number, because 226286809 - 21 = 226286807 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (226286803) 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, 1609 + ... + 21334.

It is an arithmetic number, because the mean of its divisors is an integer number (32351040).

Almost surely, 2226286809 is an apocalyptic number.

It is an amenable number.

226286809 is a deficient number, since it is larger than the sum of its proper divisors (32521511).

226286809 is a wasteful number, since it uses less digits than its factorization.

226286809 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 24359.

The product of its (nonzero) digits is 165888, while the sum is 43.

The square root of 226286809 is about 15042.8324792906. The cubic root of 226286809 is about 609.3774971767.

The spelling of 226286809 in words is "two hundred twenty-six million, two hundred eighty-six thousand, eight hundred nine".

Divisors: 1 7 1409 9863 22943 160601 32326687 226286809