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226416561 = 3710781741
BaseRepresentation
bin11010111111011…
…01011110110001
3120210001011010120
431133231132301
5430430312221
634244520453
75416336410
oct1537553661
9523034116
10226416561
11106896128
12639b0129
1337ba61c7
14220db477
1514d265c6
hexd7ed7b1

226416561 has 8 divisors (see below), whose sum is σ = 345015744. Its totient is φ = 129380880.

The previous prime is 226416551. The next prime is 226416587. The reversal of 226416561 is 165614622.

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

It is not a de Polignac number, because 226416561 - 29 = 226416049 is a prime.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (226416551) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 5390850 + ... + 5390891.

It is an arithmetic number, because the mean of its divisors is an integer number (43126968).

Almost surely, 2226416561 is an apocalyptic number.

226416561 is a gapful number since it is divisible by the number (21) formed by its first and last digit.

It is an amenable number.

226416561 is a deficient number, since it is larger than the sum of its proper divisors (118599183).

226416561 is a wasteful number, since it uses less digits than its factorization.

226416561 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10781751.

The product of its digits is 17280, while the sum is 33.

The square root of 226416561 is about 15047.1446128493. The cubic root of 226416561 is about 609.4939465060.

The spelling of 226416561 in words is "two hundred twenty-six million, four hundred sixteen thousand, five hundred sixty-one".

Divisors: 1 3 7 21 10781741 32345223 75472187 226416561