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10172018 = 217417297
BaseRepresentation
bin100110110011…
…011001110010
3201010210101102
4212303121302
510101001033
61002004402
7152314013
oct46633162
921123342
1010172018
11581842a
1234a6702
132151c5c
1414cb00a
15d5dde8
hex9b3672

10172018 has 16 divisors (see below), whose sum is σ = 16551864. Its totient is φ = 4669440.

The previous prime is 10172017. The next prime is 10172021. The reversal of 10172018 is 81027101.

It can be written as a sum of positive squares in 4 ways, for example, as 6848689 + 3323329 = 2617^2 + 1823^2 .

It is not an unprimeable number, because it can be changed into a prime (10172017) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2255 + ... + 5042.

Almost surely, 210172018 is an apocalyptic number.

10172018 is a deficient number, since it is larger than the sum of its proper divisors (6379846).

10172018 is a wasteful number, since it uses less digits than its factorization.

10172018 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7357.

The product of its (nonzero) digits is 112, while the sum is 20.

The square root of 10172018 is about 3189.3601239120. The cubic root of 10172018 is about 216.6717910688.

Adding to 10172018 its reverse (81027101), we get a palindrome (91199119).

The spelling of 10172018 in words is "ten million, one hundred seventy-two thousand, eighteen".

Divisors: 1 2 17 34 41 82 697 1394 7297 14594 124049 248098 299177 598354 5086009 10172018