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206123212396 = 22195072641657
BaseRepresentation
bin1011111111110111100…
…1101001111001101100
3201201001002012002210201
42333331321221321230
511334120020244041
6234405223443244
720614632253123
oct2777571517154
9651032162721
10206123212396
117a4641a8312
1233b462b6524
131658ba9808a
149d95404aba
155565ce9631
hex2ffde69e6c

206123212396 has 12 divisors (see below), whose sum is σ = 360734249848. Its totient is φ = 103056283872.

The previous prime is 206123212357. The next prime is 206123212403. The reversal of 206123212396 is 693212321602.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1242801 + ... + 1398856.

Almost surely, 2206123212396 is an apocalyptic number.

It is an amenable number.

206123212396 is a deficient number, since it is larger than the sum of its proper divisors (154611037452).

206123212396 is a wasteful number, since it uses less digits than its factorization.

206123212396 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2661168 (or 2661166 counting only the distinct ones).

The product of its (nonzero) digits is 46656, while the sum is 37.

Adding to 206123212396 its reverse (693212321602), we get a palindrome (899335533998).

The spelling of 206123212396 in words is "two hundred six billion, one hundred twenty-three million, two hundred twelve thousand, three hundred ninety-six".

Divisors: 1 2 4 19507 39014 78028 2641657 5283314 10566628 51530803099 103061606198 206123212396