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226581743 = 1697133519
BaseRepresentation
bin11011000000101…
…01110011101111
3120210100112201102
431200111303233
5431001103433
634252233315
75420625113
oct1540256357
9523315642
10226581743
11106999243
1263a6b83b
1337c3344b
1422141743
1514d5a4e8
hexd815cef

226581743 has 4 divisors (see below), whose sum is σ = 226716960. Its totient is φ = 226446528.

The previous prime is 226581721. The next prime is 226581757. The reversal of 226581743 is 347185622.

It is a happy number.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 226581743 - 214 = 226565359 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 226581697 and 226581706.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (226581713) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 65063 + ... + 68456.

It is an arithmetic number, because the mean of its divisors is an integer number (56679240).

Almost surely, 2226581743 is an apocalyptic number.

226581743 is a deficient number, since it is larger than the sum of its proper divisors (135217).

226581743 is a wasteful number, since it uses less digits than its factorization.

226581743 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 135216.

The product of its digits is 80640, while the sum is 38.

The square root of 226581743 is about 15052.6324275855. The cubic root of 226581743 is about 609.6421290646.

The spelling of 226581743 in words is "two hundred twenty-six million, five hundred eighty-one thousand, seven hundred forty-three".

Divisors: 1 1697 133519 226581743