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226219561 = 1771187423
BaseRepresentation
bin11010111101111…
…01011000101001
3120202200010220021
431132331120221
5430403011221
634240400441
75414556151
oct1536753051
9522603807
10226219561
11106771117
1263916121
1337b37639
1422089761
1514cd8041
hexd7bd629

226219561 has 8 divisors (see below), whose sum is σ = 242901504. Its totient is φ = 209912640.

The previous prime is 226219541. The next prime is 226219579. The reversal of 226219561 is 165912622.

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 226219561 - 211 = 226217513 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (226219501) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 92505 + ... + 94918.

It is an arithmetic number, because the mean of its divisors is an integer number (30362688).

Almost surely, 2226219561 is an apocalyptic number.

It is an amenable number.

226219561 is a deficient number, since it is larger than the sum of its proper divisors (16681943).

226219561 is a wasteful number, since it uses less digits than its factorization.

226219561 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 187511.

The product of its digits is 12960, while the sum is 34.

The square root of 226219561 is about 15040.5970958603. The cubic root of 226219561 is about 609.3171261838.

The spelling of 226219561 in words is "two hundred twenty-six million, two hundred nineteen thousand, five hundred sixty-one".

Divisors: 1 17 71 1207 187423 3186191 13307033 226219561