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208369226 = 21324491373
BaseRepresentation
bin11000110101101…
…11011001001010
3112112002020211202
430122313121022
5411320303401
632402024202
75110052312
oct1432673112
9475066752
10208369226
11a768997a
1259948062
1334227800
141d960442
151345e06b
hexc6b764a

208369226 has 24 divisors (see below), whose sum is σ = 339446700. Its totient is φ = 95886336.

The previous prime is 208369223. The next prime is 208369241. The reversal of 208369226 is 622963802.

It is a Cunningham number, because it is equal to 144352+1.

It can be written as a sum of positive squares in 6 ways, for example, as 105042001 + 103327225 = 10249^2 + 10165^2 .

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 208369226.

It is not an unprimeable number, because it can be changed into a prime (208369223) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 151076 + ... + 152448.

Almost surely, 2208369226 is an apocalyptic number.

208369226 is a gapful number since it is divisible by the number (26) formed by its first and last digit.

208369226 is a deficient number, since it is larger than the sum of its proper divisors (131077474).

208369226 is a wasteful number, since it uses less digits than its factorization.

208369226 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1850 (or 1837 counting only the distinct ones).

The product of its (nonzero) digits is 62208, while the sum is 38.

The square root of 208369226 is about 14435.0000346380. Note that the first 4 decimals coincide. The cubic root of 208369226 is about 592.8495931630.

The spelling of 208369226 in words is "two hundred eight million, three hundred sixty-nine thousand, two hundred twenty-six".

Divisors: 1 2 13 26 169 338 449 898 1373 2746 5837 11674 17849 35698 75881 151762 232037 464074 616477 1232954 8014201 16028402 104184613 208369226