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10206161 = 72316719
BaseRepresentation
bin100110111011…
…101111010001
3201012112012222
4212323233101
510103044121
61002430425
7152515400
oct46735721
921175188
1010206161
115841049
123502415
132164664
1414d9637
15d690ab
hex9bbbd1

10206161 has 12 divisors (see below), whose sum is σ = 12257280. Its totient is φ = 8464680.

The previous prime is 10206149. The next prime is 10206187. The reversal of 10206161 is 16160201.

It is a happy number.

It is a de Polignac number, because none of the positive numbers 2k-10206161 is a prime.

It is not an unprimeable number, because it can be changed into a prime (10206121) 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, 1841 + ... + 4878.

It is an arithmetic number, because the mean of its divisors is an integer number (1021440).

Almost surely, 210206161 is an apocalyptic number.

It is an amenable number.

10206161 is a deficient number, since it is larger than the sum of its proper divisors (2051119).

10206161 is an equidigital number, since it uses as much as digits as its factorization.

10206161 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6764 (or 6757 counting only the distinct ones).

The product of its (nonzero) digits is 72, while the sum is 17.

The square root of 10206161 is about 3194.7082808920. The cubic root of 10206161 is about 216.9139443721.

Adding to 10206161 its reverse (16160201), we get a palindrome (26366362).

The spelling of 10206161 in words is "ten million, two hundred six thousand, one hundred sixty-one".

Divisors: 1 7 31 49 217 1519 6719 47033 208289 329231 1458023 10206161