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226105309 = 437372031
BaseRepresentation
bin11010111101000…
…01011111011101
3120202110100011201
431132201133131
5430340332214
634234115501
75413602103
oct1536413735
9522410151
10226105309
111066a32a1
126387bb91
1337ac7631
1422059c73
1514cb4274
hexd7a17dd

226105309 has 8 divisors (see below), whose sum is σ = 234536192. Its totient is φ = 217818720.

The previous prime is 226105307. The next prime is 226105331. The reversal of 226105309 is 903501622.

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 226105309 - 21 = 226105307 is a prime.

It is a super-2 number, since 2×2261053092 = 102247221515970962, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (226105303) 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, 32877 + ... + 39154.

It is an arithmetic number, because the mean of its divisors is an integer number (29317024).

Almost surely, 2226105309 is an apocalyptic number.

It is an amenable number.

226105309 is a deficient number, since it is larger than the sum of its proper divisors (8430883).

226105309 is an equidigital number, since it uses as much as digits as its factorization.

226105309 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 72147.

The product of its (nonzero) digits is 3240, while the sum is 28.

The square root of 226105309 is about 15036.7984956905. The cubic root of 226105309 is about 609.2145305417.

The spelling of 226105309 in words is "two hundred twenty-six million, one hundred five thousand, three hundred nine".

Divisors: 1 43 73 3139 72031 3097333 5258263 226105309