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226316549 = 421537569
BaseRepresentation
bin11010111110101…
…01000100000101
3120202212001221102
431133111010011
5430414112144
634242425445
75415442004
oct1537250405
9522761842
10226316549
11106827a78
1263962285
1337b6c824
14220b2c3b
1514d06b4e
hexd7d5105

226316549 has 4 divisors (see below), whose sum is σ = 226854540. Its totient is φ = 225778560.

The previous prime is 226316539. The next prime is 226316567. The reversal of 226316549 is 945613622.

226316549 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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

It can be written as a sum of positive squares in 2 ways, for example, as 67732900 + 158583649 = 8230^2 + 12593^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2k-226316549 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (226316539) 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, 268364 + ... + 269205.

It is an arithmetic number, because the mean of its divisors is an integer number (56713635).

Almost surely, 2226316549 is an apocalyptic number.

It is an amenable number.

226316549 is a deficient number, since it is larger than the sum of its proper divisors (537991).

226316549 is an equidigital number, since it uses as much as digits as its factorization.

226316549 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 537990.

The product of its digits is 77760, while the sum is 38.

The square root of 226316549 is about 15043.8209574563. The cubic root of 226316549 is about 609.4041920497.

The spelling of 226316549 in words is "two hundred twenty-six million, three hundred sixteen thousand, five hundred forty-nine".

Divisors: 1 421 537569 226316549