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226541749 = 724623301
BaseRepresentation
bin11011000000011…
…00000010110101
3120210021111212011
431200030002311
5430443313444
634251324221
75420400400
oct1540140265
9523244764
10226541749
11106971195
1263a50671
1337c1b195
1422130d37
1514d4d734
hexd80c0b5

226541749 has 6 divisors (see below), whose sum is σ = 263528214. Its totient is φ = 194178600.

The previous prime is 226541723. The next prime is 226541761. The reversal of 226541749 is 947145622.

It can be written as a sum of positive squares in only one way, i.e., 154206724 + 72335025 = 12418^2 + 8505^2 .

It is not a de Polignac number, because 226541749 - 27 = 226541621 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 (226547749) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 2311602 + ... + 2311699.

It is an arithmetic number, because the mean of its divisors is an integer number (43921369).

Almost surely, 2226541749 is an apocalyptic number.

It is an amenable number.

226541749 is a deficient number, since it is larger than the sum of its proper divisors (36986465).

226541749 is an equidigital number, since it uses as much as digits as its factorization.

226541749 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4623315 (or 4623308 counting only the distinct ones).

The product of its digits is 120960, while the sum is 40.

The square root of 226541749 is about 15051.3038970051. The cubic root of 226541749 is about 609.6062575925.

The spelling of 226541749 in words is "two hundred twenty-six million, five hundred forty-one thousand, seven hundred forty-nine".

Divisors: 1 7 49 4623301 32363107 226541749